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 19, 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 13, 2011
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1. when you have just dumped or been dumped, and you are feeling majorly low, and all you wanna do is sit around and cry and eat chocolates and strangle the teddy bear he gave you...

2. if you've just been parted from something you majorly love, and you're really down about it.
"dude...i'm suffering from PBUS"

"damn it! i can't believe i'm not the play is over, i'm having theatre PBUS!"
by converse_kid February 19, 2004
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when ur so bummed about just bein dumped by the person you loved, that you start acting like a total retard
"hey evrybody listen to this" (bends over and farts)
by giz May 25, 2004
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Straight up posted is where you look really good. It comes from when you have a really good-looking photo and post it online.
by Rupertpembot January 12, 2023
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The homosexual act of one man having anal intercourse with another while leaning against a post.
Damn! Did you see Tonio and that man with the boots? I just saw them post up at the piggly wiggly.
by Tonio row July 26, 2021
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To stand with one arm straight down, with the hand outwards, and the other turned at your side to put two fingers on the inner elbow of the first arm.
"Mr. O'Brien is posted up with his students for this photo I am going to take."
"Sheeeeesh"
by Nomencreature March 7, 2022
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