When somebody scares the shit out of you while pooping.
He was in there reading a magazine when I jumped out of the shower and boo pooed him. It was an instant evacuation.
by Jepusmc August 8, 2013
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When you take a huge shit, flush, and just when you think the turd has been evacuated, it pokes it's head back into the toilet bowl.
Thomas: Oh you *****

Brett: What?

Thomas:
I just had to plunge your peek-a-boo poo

Brett: Haha I didn't know it came back up!
by J. Masse April 26, 2009
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Term of endearment for your significant other who has bowel issues leading to embarrassing or uncomfortable moments.
- Last night my "Poo Boo" literally shit the bed.
- Tag your "Poo Boo" referenced in the comments of Diarrhea or similar meme.
by Stinky&TheJew December 30, 2020
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When you feel like you really need to poop but it’s just a huge fart
Did you shart yourself?
Nah man it was just a poo boo
by Doodytooty July 1, 2020
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Also known as LAPB. Luca Alexander is a master at geometry dash but he always throws his phone and rages like a buck.
He is a big buck.
by Ejj oh jehehed May 11, 2020
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