To run sexual tings
"dat gurl wanna run flexxes wit me"
"u wanna flex"
by Angel February 21, 2003
Top Definition
As far as urban slang, the definition is "to show off." Used by many rappers, most notable Ice Cube and the Geto Boys. Originated in the urban community, and has been used for quite some time.
" flexin', didn't even look in the nearest direction as I ran the intersection. (This is said because Ice is trying to get away from some people who tried to kill him the other day In the song, of course)" -Ice Cube, "It Was a Good Day"
by The Boston Rag February 27, 2005
(Verb) to put up a fake front.
"Man you see all you guys are so fake, yall be flexin!"
by SirEli April 29, 2010
Adjective: To stunt or show off used by many rappers in various songs.
I ain't gotta flex, boy I got it, ooh, ooh, ooh, ooh - Rich Homie Quan
by TrapKingzofIslip August 08, 2015
Also used to describe someone wearing something.Sometimes proudly to make it seen.
(2 men in the mall)
Man1:I got my new Aj jacket man
Man2: Yo your tryin to flex that jaket man
by andre.. February 23, 2005
A substance added to street drugs to increase the weight of the product, allowing more profit to be made, but in return, usually taking away from the drug's original potency and lowering it's side effects.
"He used too much flex. I didn't even get high."
by Nah Uh July 09, 2015
To lie or Bend and flex muscles; To lie and say you have something when you really... Don't. Fame, Instagram followers. ; to bend and push out muscles
Bruh, you flexin' mad hard

You like the way I flex my arms
by fruitofthelome March 10, 2015
What Mike Vick does to people.
Vick was about to flex on dat fool till he got his wheel all broke up.
by DirkOut August 25, 2003

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