1.) an exclamation, used when mad at someone
2.) when you're holding a young and nakey child and said child 'poos on you'
1.) Amy: You're stupid!
Lindsay: Well... well... POO ON YOU! Gosh

2.) Give me the baby before he poos on you!
by LittlePunkTrekkie December 8, 2010
Get the poo on you mug.