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16.
(flax n)Verb-From the action of a males scrotum when he exerts himself or gets excited

A term meaning to exert ones dominance over another
I didnt fuck your sister man so you can stop flexin on me
by Un10nCarb1d4 May 07, 2009
 
1.
Flexin is when you show off the stuff you got
Marcus : cuz i got these tuff rims on tha chevy

Jamal : you needa stop flexin
by Dboii April 23, 2010
 
2.
to show off, as in flexing ones muscles.
"dat foo bout ta get jacked flexin dat joorey"(jewelry)
by hazzi January 11, 2003
 
3.
showin off shit to make ur broke ass look like u got money
damn is that that nigga jermaine flexin his dollar tree chain that dude know hes broke
by dezzydagreat August 06, 2010
 
4.
1.)To show off or showboat muscles or materialistic goods.
2.)To lie
1.) I can't stand Mike, he's always flexin his muscles.
2.) Jacob: I got a whip on 24's.

Tina: For real?

Jacob's friend: That dude flexin'. He has a used Geo.
by Sweetness7 August 26, 2009
 
5.
flexin means- trippin' lying, being fake
john: "man u know i hung out with lil wayne"?
nick: "nigga u flexin u aint do that"
by datrealnigga July 14, 2009
 
6.
Stepping up to someone like you wanna throw down and fight.
"You flexin' fool, you flexin'?!!!"
by zacho January 09, 2003
 
7.
A d.j. delivering a proper set on the turntables. We're "flexin" tonight.
by Anonymous September 19, 2003