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
Random Words:
1.
1. one of those gross cheese-filled hotdogs with the cheese sucked out of it.
2. a spent cartridge, a post-wad-blowing schlong.
3. ..