When you cross your legs and flex your butt muscles together to hold a dump in because your anal sphincter isn't strong enough.
Dude I had a close call this morning. I broke into a shuffle on the way to the bathroom and had to pause half way to do a flex stop.
by hilarioyo September 28, 2013

To act tougher than you really are. When somebody tries to act tougher or dominating, but doesn't necessarily pull it off in a believable way.
When I made fun of Jason at the party in front of his girlfriend, he all tried to flex nuts and get up in my face, tellin me he was going to whoop my ass. I told him let's go outside, and he took his girl's hand and pussed out. He tried to flex nuts, then backed down.
by Jeffro April 15, 2007

by Goats ‘n Goats October 3, 2018

Bitch Flex
Have you ever met one of those guys, you know, the one who sends you a text message when he should have called. One who avoids confrontation by suddenly having to work all weekend or disappears like the polkaroo. One who pretends his phone battery dies when you are having a particularly heated conversation. Or how about the guy you catch cheating and he tells you that he thought, despite the fact that you were sleeping together that he thought you were just friends. Now
that's a bitch flex. On a lighter note, the term may also be
used among friends, in a joking fashion.
Have you ever met one of those guys, you know, the one who sends you a text message when he should have called. One who avoids confrontation by suddenly having to work all weekend or disappears like the polkaroo. One who pretends his phone battery dies when you are having a particularly heated conversation. Or how about the guy you catch cheating and he tells you that he thought, despite the fact that you were sleeping together that he thought you were just friends. Now
that's a bitch flex. On a lighter note, the term may also be
used among friends, in a joking fashion.
"Can you believe the nerve of that guy, not even having the balls to call me back after I confronted him about his so
called girlfriend?"
"Girl, that's a bitch flex."
"I know, right?"
called girlfriend?"
"Girl, that's a bitch flex."
"I know, right?"
by Mishee Shan July 26, 2009

1. (noun) One who kills the flex.
The Flex Killer, most often a female, kills the flex of surrounding individuals by eliminating any shred of happiness or joy present.
By sucking the life out of every enjoyable situation, the Flex Killer quickly becomes a widely feared and hated phenomenon.
They can be spotted most frequently at social events, geographic locations and even government-funded institutions (i.e. Prom, Wasaga Beach, Thornlea Secondary School, or in the general Thornhill region). This makes the Flex Killer a truly dangerous individual, and one to be avoided at all costs.
The Flex Killer, most often a female, kills the flex of surrounding individuals by eliminating any shred of happiness or joy present.
By sucking the life out of every enjoyable situation, the Flex Killer quickly becomes a widely feared and hated phenomenon.
They can be spotted most frequently at social events, geographic locations and even government-funded institutions (i.e. Prom, Wasaga Beach, Thornlea Secondary School, or in the general Thornhill region). This makes the Flex Killer a truly dangerous individual, and one to be avoided at all costs.
*Individuals gathered around enjoying the flex*
Enter: Flex Killer
QUE - Mayhem, chaos, mass suicides, abortions, diarrhea, syphilis, and general flex-killage
Enter: Flex Killer
QUE - Mayhem, chaos, mass suicides, abortions, diarrhea, syphilis, and general flex-killage
by TheLastPersonToEverKillTheFlex November 13, 2011

by Jungle flex July 10, 2014

by BruhYouGayn't April 22, 2020
