look up any word, like usuratonkachi:
 
1.
A common answer to ya mam jokes.
Often seen as funny the first few times but boys tend to think up more come backs after a lot of use. Such as ya nana or ya sister.
Boy: Ya mam..hahahaha
Girl: Oh yeh? Well ya dad
Boy: :O *speechless*
by EmGem November 17, 2007