This list includes 12 Slang words that start with X, from “x-rated” to “xx”. These informal and often regionally tinged entries help writers, learners, and curious readers spot tone and usage quickly.
Slang words that start with X are informal or playful expressions beginning with the letter X. Because X is rare in English, many such entries are borrowed, altered spellings, or abbreviations like “x-rated”.
Below you’ll find the table with Word, Meaning, Region, Register, Example, Source.
Word: Shows the slang term itself so you can scan entries and spot variants or alternate spellings quickly.
Meaning: Gives a brief plain-English definition so you can grasp typical meaning and register without diving into specialist sources.
Region: Notes geographic or community usage so you know where a term is common or limited.
Register: Indicates formality, offensiveness, or slang strength to help you choose appropriate words for tone and audience.
Example: Offers a concise sentence showing typical use so you can copy structure or judge naturalness.
Source: Lists a brief origin, date, or citation so you can trace usage history or verify novelty.
Slang words that start with X
Word
Meaning
Region
Register
xo
hugs and kisses sign-off
Global
affectionate
xoxo
hugs and kisses (reduplicated)
Global
affectionate
xx
kisses sign-off in messages
UK/Global
affectionate
xd
laughing emoticon in chats
Global
internet
xmas
informal abbreviation of Christmas
Global
informal
x-rated
pornographic; sexually explicit
Global
vulgar
xan
slang for Xanax (alprazolam)
US
drug
xans
plural of xan; pills (slang)
US
drug
xanny
colloquial slang for Xanax
US
drug
xanax
brand name used colloquially for benzodiazepines
US/Global
drug
xtra
short form of “extra” (over-the-top)
US/Global
informal
xennial
informal generational label
US/Global
informal
Descriptions
xo
Two-letter valediction meaning hugs and kisses. Common in letters, texts, and social media; origin uncertain but widely used internationally.
xoxo
Repeated xo for emphasis in casual messages and cards. Very common in English-language informal writing and online communications.
xx
Double ‘x’ used as kisses in British and Commonwealth sign-offs and texts. Less common in formal contexts; signals friendliness or affection.
xd
Chat emoticon representing laughing/closed-eyes face. Popular in early internet/gaming culture; sometimes seen as dated by younger users.
xmas
Common shorthand for Christmas in headlines, texts, and informal writing. Originates from Greek Chi (X); casual, sometimes objected to on stylistic or religious grounds.
x-rated
Colloquial label for explicit sexual content, from film-rating systems. Used informally to describe media, jokes, or behaviour as sexually explicit.
xan
Shortened street slang for the benzodiazepine Xanax, used in drug-talk, music, and social media. Often linked to recreational misuse; caution advised.
xans
Plural slang referring to Xanax pills or benzodiazepines generally. Frequent in music and online drug culture; associated with illegal use and health risks.
xanny
Informal variant popularized in pop culture (e.g., song titles). Used in social media and conversation to mean taking or referencing Xanax recreationally.
xanax
Brand-name medication widely referenced as slang for alprazolam. Appears in music and speech as shorthand for sedative effects; both prescription drug and cultural reference.
xtra
Texting and youth slang spelling for “extra,” meaning dramatic or excessive. Common in captions, comments, and conversational English.
xennial
Portmanteau for people born on the Gen X/Millennial cusp (late 1970s–early 1980s). Used conversationally in media and social discussion about cohorts.
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