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flex

To show off — possessions, skills, achievements, partners, views.

fleksDocumented since 2010s2010sGen Alphatrending1.3K viewsLast reviewed Jun 29, 2026+ Add a definition
🔥 Gen Z & TikTok
3 definitions
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Born ~2019 · no dated citations yet
2019BornToday, 2026

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#1·Apr 24, 2026GlobalCasual

To show off — possessions, skills, achievements, partners, views. "Hard flex" = unmissable brag. "Soft flex" = casually dropped reference. "Weird flex but ok" disarms someone bragging about something irrelevant: a one-line roast for oversharers.

"Just stressed about packing for Paris again." — humble flex, detected."
Origin: AAVE/hip-hop; from the physical "flex" of muscles, then metaphorically any display of power. "Weird flex but ok" became a viral meme in 2019.
For parents

flex means To show off — possessions, skills, achievements, partners, views. It's mostly used on TikTok and short-form video. It's casual and generally safe with friends and online. It's standard online vocabulary; nothing inherently concerning about hearing it.

For ESL learners

"flex" is slang. It means: To show off — possessions, skills, achievements, partners, views. Register: casual. Use it in: casual conversation and online posts. Avoid in: formal writing and professional emails.

Cluster: approval
Heard in the wild
  • “The Flex 3 SDK was released under the [MPL-1.1](https://en.wikipedia.org/wiki/Mozilla_Public_License "Mozilla Public License") license in 2008.”

  • “McNamara resigned as the company's Chief Executive Officer.[\[17\]](https://en.wikipedia.org/wiki/Flex_Ltd.#cite_note-17) On 11 February 2019, Flex announced [Revathi Advaithi](https://en.wikipedia.org/wiki/Revathi_Advaithi "Revathi Advaithi") as CEO.”

  • “The implementation was done by Kevin Gong and Vern Paxson.[\[11\]](https://en.wikipedia.org/wiki/Flex_(lexical_analyzer_generator)#cite_note-flexman-11) ## Example lexical analyzer This is an example of a Flex scanner for the instructional programming language [PL/0](https://en.wikipedia.org/wiki/PL/0 "PL/0").”

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#2·Apr 24, 2026GlobalCasual

Flex hierarchy: hard flex (obvious brag), soft flex (casually dropped), humble flex (disguised as complaint), weird flex (irrelevant but volunteered anyway). A humble flex is the preferred modern form — mentioning your vacation, promotion, or new relationship in passing while pretending not to.

"Just stressed about packing for Paris again." — humble flex, detected.
Origin: Gen Z / TikTok-era slang.
Cluster: approval
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Global
#3·Apr 26, 2026GlobalCasual

Verb: to show off, especially on social media. "He's flexing his new car." Cross-pollinated from hip-hop into general slang.

"Stop flexing, we get it."
Origin: AAVE / hip-hop, decades old; the social-media flex sense became standard 2010s.
Cluster: approval
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For specific readers

flex means To show off — possessions, skills, achievements, partners, views. It's mostly used on TikTok and short-form video. It's casual and generally safe with friends and online. It's standard online vocabulary; nothing inherently concerning about hearing it.

Why is this section here?

Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.

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