What is Surprise Bowel Movement?


1.

aka SBM, when you think you are just going to the bathroom to take a piss, and you unexpectedly have the urge to poop.

"Dude, what took you so long to piss? Did you fall in?!"

"Nah man, I had a Surprise Bowel Movement."

See suprise, movement, sbm, poop, crap, shit, scat


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