short for flexible, also can mean easy going, or down for whatever.
"Baby you want to go out tonight or stay in?" he asks. "I'm flex," she replies.
by BellaBelle June 28, 2012
Having some sweet hot sex on the floor!
Imma get my flex on! Man I got rug burns from that flex.
by sleezbreeze September 11, 2011

A Clan on Xbox live comprising of Hackers and Trolls. An overall less than average clan with the exception of hacking.

Adjective. (
Used to describe malicious players in Call of Duty: Black Ops, or other Xbox Live compatible games.

Verb. (
Showing off how good you are at Hacking and Trolling in the above-mentioned Games.
"The F.L.E.X. Clan is full of cheaters!"

"John McCain is quite the F.L.E.X. er"

"Hobowner loves F.L.E.X. ing"
by Purebro69 December 29, 2010
A dance, popular with go-go music.
A son you hear that new impressions, I'm about to do the runnin man

boy that's dead, you betta get'ta flexin
by B11, your info. source May 15, 2010
To snog
Bob: OMG she looked so buff 2 day
Jim: Did you flex her?
Bob: Yeah man all day in the park
by Dragonmaster24 October 23, 2009
Former lover, present friend.
My flex is helping me move this weekend.
by Kaichester August 28, 2009
To dance, generally in the form of a man and woman with the woman's buttocks grinding against the man's genital area.
Pull dat gyal dey and take a lil flex na boy
by trinichic11 August 06, 2009

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