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when you poop in your undies on accident
Girl: That roller coaster was awesome I thought I was going to shit my pants! Wait... I did crap my pants!

Friend: You just had a whoopsie poopsie! HHAAAHAHHAAA!
by slappy pappy dingus April 05, 2010

Words related to whoopsie poopsie

crap shit dookie fart poop
In Ancient China, this was said (in Chinese translation of course) during anal sex when ones penis came in contact with the receivers bowel movements. After done with the bowel movement, the anal receiver would then spread the poo on a platter and then rub the platter on the anal giver's nipple (preferably left)
I gave this hot asian whore a whoopsie poopsie the other day. She ended up licking it off my titties.
by Beaver Boy March 15, 2005