1 definition by The girl who wants to have Ryan Rosses babies

ur mum

the british form of "ur mom", a overused comeback that is funny if used as a joke or your kidding when u say it.

Person:Fuck U!
British Person: I fucked ur mum!

b_i_t_c_h678: i have sooo much homework.
this1person923: ur mom has so much homework! OH! BURN! WAT NOW!?!?!?!
b_i_t_c_h678: wtf lol

by The girl who wants to have Ryan Rosses babies July 17, 2006