This list includes 40 Slang words that start with A, from “a-game” to “ax”. They range from gaming and sports terms to regional nicknames used across English-speaking communities.

Slang words that start with A are informal terms and expressions beginning with the letter A. Many come from music, sports, and online culture, like “a-game” meaning peak performance.

Below you’ll find the table with the columns: “Word”, “Meaning”, “Region”, “Register”, and “Example”.

Word: The slang term itself, shown so you can quickly scan entries and locate specific A‑words.

Meaning: A concise definition that explains sense and common uses, helping you choose the right word.

Region: Notes where the term is commonly used, so you know geographic or community context.

Register: Labels formality and tone, so you understand whether the slang is casual, offensive, or dated.

Example: A short sentence showing natural usage, helping you see how the word fits real conversation.

Slang words that start with A

TermMeaningRegion/RegisterExample
aceexcellent, greatUK, informal (OED)That gig was ace last night.
ain’tcontraction meaning am/is/are notUS/UK, informal (OED)I ain’t gonna lie.
aggroaggression, troubleUK, informal/pejorative (UD)Nobody wants any aggro tonight.
arvoafternoonAUS, informal (Macquarie/UD)See you this arvo.
arsedbothered (negated: can’t be arsed)UK, informal/vulgar (OED)I couldn’t be arsed to go.
arsebutt; idiot (vulgar)UK, informal/vulgar (OED)Get off your arse.
assbutt; jerk (vulgar)US/UK, informal/vulgar (M-W)Don’t be an ass.
assholeobnoxious, contemptible personUS, pejorative/vulgar (M-W)He’s being a real asshole.
apeshitextremely angry or excitedUS, vulgar/informal (UD)She went apeshit at the meeting.
ampedexcited, hypedUS, informal (M-W)I’m amped for tonight’s show.
adorbsadorable, very cuteUS/UK, affectionate/informal (Twitter)That kitten is totally adorbs.
awksawkwardUS/UK, texting/informal (Twitter/UD)That silence was so awks.
awwexpression of sympathy or cutenessGlobal, informal (social media)Aww, that’s so sweet.
awolabsent without leave; missingUS, informal (military→colloquial)He’s been awol all weekend.
applesaucenonsense (dated)US, dated/informal (OED)Ignore him—he’s talking applesauce.
addyaddress (informal)UK/US, informal (UD)Send me your addy.
a-gamebest performanceUS, informal (idiom)Bring your A-game tomorrow.
altalternative; counterculturalUS/UK, informal (music press/UD)She’s into alt bands.
anklebitersmall childUS/UK, informal/affectionate (UD)Watch the anklebiter near the pond.
attaboygood job, well doneUS, informal (colloquial)Attaboy—nice catch!
attagirlgood job to a femaleUS, informal (colloquial)Attagirl, you nailed it!
airheadsilly, scatterbrained personUS/UK, informal/pejorative (M-W)Don’t be such an airhead.
aightalright; okayUS, informal/AAVE (UD)You aight after that fall?
anorakobsessive fan, nerdUK, informal/pejorative (OED)He’s a train anorak.
aunt floeuphemism for menstruationUS/UK, informal (UD)Told the boss Aunt Flo arrived.
apple-polisherteacher’s pet, flattererUS/UK, dated/informal (OED)Stop being an apple-polisher to the boss.
alley-oopbasketball play; daring moveUS, informal/sports (basketball lexicon)He threw an alley-oop dunk.
arm candyattractive companionUS, informal/pejorative (UD)She arrived with arm candy.
amigofriend (loanword used informally)US, informal (Spanish loanword)Hey amigo, long time no see.
ammoammunition; figurative fodderUS, informal (M-W)That clip gave him ammo in the debate.
all-nighterstaying up all nightUS/UK, informal (colloquial)Pulling an all-nighter for exams.
and I oopexpression for surprised embarrassmentGlobal, internet/informal (Vine/Twitter)And I oop—dropped my phone.
adultingdoing grown-up responsibilitiesUS, informal/ironic (Internet)I’m tired of adulting today.
argy-bargynoisy argument or disputeUK, informal/dialect (OED)There was some argy-bargy outside.
axask (dialectal variant)US, AAVE/dialectal (OED)He axed me for directions.
adzooksold-fashioned exclamation of surpriseUK/US, dated/informal (OED)Adzooks! I didn’t expect that.
ante uppay one’s share; contributeUS, informal (poker→colloquial)Everyone ante up for the taxi.
awksiesplayful form of awkwardUS/UK, playful/informal (Twitter/UD)That answer was so awksies.
afterpartysocial gathering after main eventUS/UK, informal (colloquial)We’re headed to the afterparty.
all thatimpressive, desirable; “worth praise”US, informal/juvenile (1990s slang)She’s totally all that and more.

Descriptions

ace
Widely used British praise term; also a verb meaning to perform very well, common in speech and sport contexts.
ain’t
Colloquial, stigmatized contraction used across dialects; common in song lyrics and everyday speech.
aggro
Short for aggravation; common British slang for fights, hassle, or rowdy behavior.
arvo
Australian colloquial shortening of “afternoon”; very common in everyday Aussie speech.
arsed
Derived from “arse”; used to express lack of effort or interest; coarse tone.
arse
British vulgar term for backside or insulting someone; common in informal speech.
ass
Common coarse insult or reference to posterior; widespread in informal registers.
asshole
Strong insult; widely used in casual speech and media, considered vulgar.
apeshit
Vulgar intensifier often meaning extreme anger or excitement; common in spoken language.
amped
Derived from “amplified”; common slang in sports, music, and youth speech.
adorbs
Playful clipped form of “adorable”; popular on social media and among younger speakers.
awks
Clipped slang from “awkward”; used in speech and online to label embarrassing moments.
aww
Interjection used in spoken and online contexts to show sympathy or react to cuteness.
awol
Originally military acronym; widely used colloquially to mean unexpectedly absent or unresponsive.
applesauce
1920s slang for “nonsense”; now mostly humorous or archaic.
addy
Casual clipped form of “address”; common in conversation and text messages.
a-game
Idiomatic slang (often hyphenated); used in sports and competitive contexts to mean top form.
alt
Shortened label for alternative subcultures or tastes; used as identity marker in youth culture.
anklebiter
Humorous, slightly pejorative term for a toddler or small child; affectionate or dismissive tone.
attaboy
Informal spoken praise; variant of “that’s a boy,” used encouragingly.
attagirl
Feminine variant of attaboy; informal praise or encouragement.
airhead
Derogatory slang for someone perceived as ditzy or lacking common sense.
aight
Colloquial phonetic spelling of “alright,” common in spoken dialects and texting; often AAVE-associated.
anorak
British slang for someone obsessively interested in niche topics; mildly derogatory.
aunt flo
Euphemistic, informal reference to a woman’s period; common in casual conversation.
apple-polisher
Older slang for someone who flatters to gain favor; somewhat dated.
alley-oop
Originally basketball slang for a collaborative high, aerial pass and dunk; now mainstream sports term.
arm candy
Informal, often pejorative term for a visually attractive partner displayed as a status symbol.
amigo
Spanish-derived informal address in English; casual and friendly tone.
ammo
Informal shortening of “ammunition”; used literally or metaphorically for material to use.
all-nighter
Common informal phrase for working or partying through the night.
and I oop
Viral meme phrase from social media used to mark a sudden, awkward moment or cringe reaction.
adulting
Recent slang for performing tasks associated with adult life; often used humorously or complainingly.
argy-bargy
Colloquial British term for quarrel or rough-and-tumble argument; mildly humorous.
ax
Historic dialectal form of “ask,” common in African American Vernacular English and some regional dialects.
adzooks
Archaic or comic exclamation once used for surprise; now humorous or ironic.
ante up
From poker terminology meaning to put in a stake; used informally to ask for money or contribution.
awksies
Lighthearted, cutesy variant of “awkward”; common in playful online language.
afterparty
Informal term for a party that follows another event; widespread in youth culture.
all that
1990s youth slang meaning excellent or fashionable; sometimes used sarcastically.
If you think there is a missing term, let us know using the contact form.