flex a grumpy

To take a shit outdoors

That burrito is kicking in. I'm fit to flex a grumpy.

by agroman2012 October 11, 2011

flex flexington

Someone who shows off all the time or flexes about things in his or her life

HaqL is a flex flexington because he flexes every shot he hits

by Dumster March 4, 2017

Flex-Mas

When one shows off - flexes - there christmas gifts within the next week after christmas.

S "shit man nice jacket, shoes, hat"
K "yeh man xmas presents'
S ' ahh standard Flex-mas'

by GPSK December 23, 2009

Flex on Gex

The act of flexing on Gex. May be used to refer to flexing on Gex himself, or applied more broadly to any situation.

I’m gonna Flex on Gex so hard tonight, Jackman’s gonna have to transport me in the ambulance.

by Fagbag jackson December 20, 2021

Not to over-flex

(original: Nepřeflexit)
verb
1. careless activity; do not exceed the literary maximual limit of Flex
2. the eleventh commandment; "You will not over-flex in front of the fellas, since the God of flex would punish you."

Guy1: "Dude, that was just so easy. First try bro, i don't know what was supposed to be the challenge here.
Guy2: "Be careful not to over-flex tho...
Guy1: *Fucks up in a spectacular way*

by PR05TEJA November 30, 2020

Instagram flexing

When you make out with a beautiful chick just to show her off to your friends.

- Damn dog you kissed her for a minute and you flex the hell of out her instagram.

- yeah that was the point you fool but don't tell anyone
- straight instagram flexing !
- don't worry, she'll never know, I'll make out with her two more times I guess

by N0_D1gn1ty February 6, 2020

forehead flexing

When you flex your forehead muscles, like when Arnold Schwarzenegger screams anything.

Arnold Schwarzenegger forehead flexing while saying "IT'S NOT A TUMOR"

by TrafficKing May 12, 2014