It is a
basic way to ignore answering a question. It can also be used to come-back from a
burn, however most people don't think it to be a very
good come-back. The main use of it is between 7-11 year old children.
"
Hey, want some pizza? I just bought it-"
"Ur
mom"
////////////////////////////////////////////
(In an argument)
"At least I didn't eat the old cheese-it on the ground!"
"Ur
mom"