1 definition by Lunchbox Hero 27

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 6, 2011
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