1)A preteen insult that is used by me and all my friends.
2)the perfect way to get dumped.
Kid 1- "My foot hurts"
kid 2- "yo MOMMAs foot hurts!"
Kid 1- *mutters* "fag*
Girl after date- Can we split the bill?
Obnoxious Guy- We can split yo MOMMAs bill!
Obnoxious Guy- Yo MOMMAs Dude! *laughs like a fucktard Girl- Bye
Obnoxious Guy- Yo MOMMAs Bi!