Flexing done prepared, not just out of the blue. Originated from Lil Tay's flexing, and the opposite of uncoordinated flex in which people flex at anytime anywhere.
by FL4ym3Burn June 13, 2018

The act of “putting your money where your mouth is” by rising to the occasion or backing down. Much like “nut up or shut up”, it is a challenge to someone who has said that they would do something to show strength—usually an aggressive or bold course of action. It is frequently an ultimatum to call someone’s bluff after they’ve been running off at the mouth about what they could or would do in any given situation. The term is used to shut down foolish declarations made by wanna-be types who have something to prove to themselves and others, but they often lack the ability to follow through.
Girl #1: “If Karly tries to step to me, she can catch these hands!”
Girl #2: “I think Karly might have heard what you said…she’s coming over here.”
Girl #1: “I don’t care if she heard!”
Karly: “Oh, yeah?!? Flex or fold!”
Girl #1: “JK, Karly…you know you’re my girl.”
(After mean-mugging Girl #1)
Karly: “That’s what I thought.”
Girl #2: “I think Karly might have heard what you said…she’s coming over here.”
Girl #1: “I don’t care if she heard!”
Karly: “Oh, yeah?!? Flex or fold!”
Girl #1: “JK, Karly…you know you’re my girl.”
(After mean-mugging Girl #1)
Karly: “That’s what I thought.”
by Gemini Grammarian February 4, 2022

While I was presenting my project, the student across from me thinks he can start feather flexing by cutting me off and asking all these questions.
by JG.F.AV November 3, 2019

by realityseeker May 1, 2019

Fully dedicating your time and effort into unlocking an acheivement in a game to the point where you haven't showered in days and then sharing for everyone to see in a sort of bragging kind of way
You seen the new gun that just came out in COD? It literally just came out yesterday and my friend unlocked everything for it already. It was all over his social media. Major sweat flex.
by AwesomeAlex808 January 26, 2020

by ShortStackB January 25, 2020
