Here you’ll find 61 Slang words that start with M, organized from “mack” to “my man”. They range from playful nicknames to regional phrases, useful for writers, learners, and content creators.
Slang words that start with M are informal expressions common in everyday speech and online conversations. Many stem from music, regional dialects, or leisure culture; for example, “mack” historically denotes a smooth talker.
Below you’ll find the table with Word, Meaning, Region, Register, Example, and Notes.
Word: The slang term itself, shown so you can scan and find specific expressions quickly and recognize spelling variations.
Meaning: A brief, plain-language definition that helps you quickly understand the term’s core sense without jargon.
Region: Indicates where the term is commonly used, so you judge local versus global relevance accurately.
Register: Notes tone and formality, so you know if the term suits casual chat, media copy, or sensitive contexts.
Example: One short sentence showing the word in context, helping you see natural usage and appropriate phrasing.
Notes: Extra details such as variants, common pairings, or brief origin notes that help you choose the right term.
Slang words that start with M
| Word | Region | Register | Meaning |
|---|---|---|---|
| mad | global | informal | crazy; very angry or intense |
| mate | UK,AUS,NZ | affectionate | friend |
| matey | UK,AUS | playful | friendly, informal address |
| moolah | US,global | informal | money |
| mooch | US,UK | informal | to freeload or loiter |
| mofo | US | pejorative | offensive insult for a person |
| mug | UK | pejorative | fool; someone easily duped |
| munchies | US | informal | strong craving for snacks (often post-cannabis) |
| muppet | UK | pejorative | idiot; foolish person |
| minger | UK | pejorative | an unattractive person |
| mong | UK | pejorative | offensive insult for a foolish or disabled person |
| monged | UK | informal | stoned, very drunk, or wrecked |
| munted | AUS,NZ | pejorative | ruined; very drunk; broken |
| mozzie | AUS | informal | mosquito |
| meh | global | informal | expression of indifference |
| mint | UK,AUS | informal | excellent, perfect condition |
| manky | UK | informal | filthy; gross |
| mansplain | US,global | pejorative | to condescendingly explain to a woman |
| mid | US,global | informal | mediocre; underwhelming |
| mega | US,UK | informal | very; extremely |
| mojo | US | informal | personal charm or confidence |
| moaner | UK | pejorative | a chronic complainer |
| moggie | UK | informal | domestic cat |
| mobbed | UK | informal | very crowded |
| mack | US | informal | to flirt or seduce; smooth talk |
| my bad | US,global | informal | my mistake |
| my man | US | affectionate | friend or someone I approve of |
| money shot | US,global | informal | the climactic or most valuable visual moment |
| moneybags | US,UK | pejorative | wealthy person |
| molly | US,global | informal | MDMA in crystalline form (drug) |
| meth | US,global | informal | methamphetamine (illicit drug) |
| mum | UK,AU,NZ | affectionate | mother |
| mum’s the word | UK,US | informal | keep this secret; don’t tell |
| mush | US,UK | affectionate | soft-hearted, sentimental person |
| mushy | US,UK | informal | overly sentimental |
| munch | US,UK | informal | to eat eagerly or noisily |
| miffed | UK,US | informal | mildly annoyed or offended |
| mouthy | US,UK | informal | talkative in a rude, disrespectful way |
| meathead | US | pejorative | stereotypically dumb, muscular man |
| musty | US,UK | informal | uncool or outdated (internet slang) |
| mwah | global | informal | onomatopoeia for a kiss sound |
| meme | global | informal | viral idea, image, or joke |
| memelord | global | playful | someone who posts many memes |
| mug off | UK | informal | to humiliate or take advantage of someone |
| marvo | UK,AUS | informal | marvelous; excellent |
| mare | UK | informal | nightmare; a difficult experience |
| minted | UK | informal | rich, wealthy |
| main | global | informal | primary choice or favorite (esp. gaming) |
| maxed | US,UK | informal | completely used up or exhausted |
| midwit | global | pejorative | someone of average intelligence who overestimates intellect |
| mook | US | pejorative | a foolish, contemptible person |
| moxie | US | informal | courage, determination, energy |
| mob | global | informal | a disorderly crowd or group |
| moony | UK,US | informal | dreamy, lovestruck |
| mope | US,UK | informal | to sulk or be gloomy |
| milk | US,UK | informal | to exploit or take advantage of something |
| mo | UK | informal | a moment; short amount of time (“in a mo”) |
| mucker | UK,IRL | informal | friend (or sometimes nuisance) |
| mag | US,UK | informal | magazine (shortened) |
| main character | US,global | informal | central person in one’s life or story |
| my guy | US | affectionate | trusted friend or reliable person |
Descriptions
mad
Flexible slang: means angry or insane, and in some contexts (US youth, UK) “very/extremely.” Widely used and highly frequent.
mate
Common British/Australian informal address for a friend; also used conversationally to greet people.
matey
Lighthearted variant of “mate,” used jokingly or warmly in British and Australian English.
moolah
Colloquial American term for cash; widespread in informal speech and pop culture.
mooch
To hang around or sponge off others; common everyday informal verb.
mofo
Strong, vulgar shortening of a profanity; harsh, widely understood in informal contexts.
mug
British informal noun for a gullible person; also used as a verb (“to mug someone”).
munchies
Popular American slang for snack cravings, especially after using cannabis.
muppet
British playful insult for someone acting stupidly; mildly derogatory.
minger
Crude British slang for someone judged physically unattractive; informal and rude.
mong
Highly offensive British slang; derogatory and should be used with caution or avoided.
monged
Derived from “mong,” used in UK slang to mean incapacitated by drugs/alcohol.
munted
Australian/New Zealand vulgar slang for something destroyed or someone extremely intoxicated.
mozzie
Aussie diminutive for mosquito; very common in Australian English.
meh
Internet and spoken slang conveying lack of enthusiasm or unimpressed reaction.
mint
British/Australian praise term meaning pristine, very good, or like-new.
manky
Colloquial British adjective for something dirty, unpleasant, or low quality.
mansplain
Portmanteau describing a man explaining something to a woman in a patronizing way.
mid
Contemporary internet slang for something average or disappointing.
mega
Informal intensifier used before adjectives to mean “very” or “huge.”
mojo
Slang for someone’s charisma, luck, or personal charm.
moaner
British slang for someone who constantly complains or grumbles.
moggie
British informal term for a cat, especially a non-pedigree one.
mobbed
British informal adjective describing a place packed with people.
mack
Slang from hip-hop/jive contexts for flirting or acting like a smooth operator.
my bad
Common informal phrase admitting an error; widely used in speech and texting.
my man
Colloquial greeting or expression of approval for a friend or ally.
money shot
Slang for a decisive, attention-grabbing moment, originally film/porn terminology, now wider usage.
moneybags
Informal jocular or derogatory term for someone with lots of money.
molly
Street name for a form of ecstasy; common in drug-related slang.
meth
Colloquial shortening for methamphetamine; common in news and street talk.
mum
Informal British/Australasian word for “mother”; everyday familial slang.
mum’s the word
Idiom used conversationally to request silence or confidentiality.
mush
Affectionate slang for someone who is tender or sentimental.
mushy
Describes sentimental behavior or content; common everyday adjective.
munch
Casual verb for eating with enthusiasm; also used in phrase contexts.
miffed
Gentle informal term for being upset or peeved.
mouthy
Describes someone who speaks back or is overly argumentative.
meathead
Derogatory slang for a brawny person perceived as unintelligent.
musty
Recently used online to call something stale, old-fashioned, or uncool.
mwah
Texting slang for a kiss; playful affectionate sign-off.
meme
Internet-born slang for a cultural item that spreads online.
memelord
Playful/informal internet term for a prolific meme poster.
mug off
British informal phrasal slang meaning to put someone down or trick them.
marvo
Shortened form of “marvellous,” used playfully in UK and Australian speech.
mare
Short for “nightmare”; common British slang for a troublesome situation.
minted
British slang meaning flush with money; fairly common in conversational speech.
main
Internet/gaming slang for the character or option one primarily uses.
maxed
Slang for having reached a limit (credit, energy) or being wiped out.
midwit
Internet insult aimed at superficially analytical but mediocre thinkers.
mook
Old-school American slang for a dull or worthless person; gangster-era origins.
moxie
Dated but still used slang for grit or guts.
mob
Slangy use for a large, often unruly group of people.
moony
Describes someone romantically absent-minded or sentimental.
mope
Casual verb for sulking; common in everyday speech.
milk
Slang verb meaning to draw advantage from a situation excessively.
mo
Colloquial British shortening of “moment”; common in informal speech.
mucker
Irish/British slang for a pal; in some contexts can be pejorative for a bother.
mag
Clipping used casually for magazines in speech and writing.
main character
Internet slang for someone acting like their life is the focal narrative.
my guy
Colloquial expression of approval for a friend; friendly informal address.