flex

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 June 28, 2015

flex

A slang term for "dancing"

"I get a bess flex in the party last night."

"I real flex up on him in the party."

by trini babe January 15, 2007

flex

to spread open a girl's legs so u can give her the business

girl flex ... time to have sex

by pepperoni1029 August 02, 2009

Flex

To run sexual tings

"dat gurl wanna run flexxes wit me"
"u wanna flex"

by Angel February 21, 2003

Flex

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

Flex

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

Flex

A ghetto synonym to flirt.
Flex sounds better in a song and has a more distinct flow to flirt.
Also it can be a conversation starter

Boy "Wassup shorty, mind if i flex with you?"
(normally if he said flirt, she'd slap him)
Girl "hey, whats flex?"
Boy "Well its...
20 minutes later they're having sex

by HizzyBwoy November 10, 2007