Also known as: Postin' it up, rock-it-hard, blockin' hard, etc.

The act of one or more people assuming random gangster poses, usually poses that originated from Run-DMC in the 80's. Crossed arms, gangster hats, bandannas, and Gumball 3000/Puma's and 13-14 year old girls are a must to correctly "Post it up."
Kenneth, Seth, and Jeff post it up hard.

Jeff tries to get girls to post it up with them. And it never works.
by Jeffrey Giraffe May 03, 2007
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The act of getting behind a woman and putting 1 leg up on an object that is higher than the ground, as to make her legs spread open from behind for easier leverage.
Yo Dawg, last night I was chillin with this chick and she was a freak, dawg. I post her up on a kitchen stool.

You wouldnt post her up, dawg? Tell me you wouldn't post it up! Real talk?
by Sancho_Sam February 18, 2010
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The type of sex that you have with someone else when you just broke up with your boyfriend/girlfriend.
Rachel decided to have post break-up sex with her close friend Dan so she could try to forget about her ex.
by thatGirlwiththehair March 12, 2011
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To chill or stand at a spot (like a club or a street corner etc). To claim a spot. The term came from drug dealers on street corners, like light posts and street posts, and there you have it POST UP!
Yo lets post up right there where all the honeys with the big booties are.
by dada-ecko February 10, 2005
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means you and someone are gonna fight, y'all about to get em up.
if she talk about me or my crew one more time , we gonna post up after school.
by G0LD3N May 03, 2015
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