Top Definition
When your cock decides to make love to your ballsack, so they stick the fuck together for some odd fucking reason. Worst of them all, you have to do squats just to unstick it.
Damon: Dude, I got PSTB.
Joey: Just do squats, it'll unstick.
by AnonymousBronyDude October 11, 2013
1 more definition
Acronym for Post-Shit Traumatic Butt Stress

The uncomfortable feeling you get after taking a burning, constipated, or diarrhea-y dump. This is only exasperated by sitting down.
"Dude, you look uncomfortable, you alright?"
"Yeah man, just got some PSTBS going on, I'll be fine in a minute."
by Lunchbox Hero 27 November 06, 2011

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