Definitions by ya mum.

ya mum 

1. Self explanatory. Your. Mum.

2. The ultimate standby when unable to think of an insulting comeback.

3. Or, for the ultra-dumb, s phrase used commonly throughout the day for absolutely no reason.

1. "Who's on the phone?"
"Ya mum again."
"Damn it."

2. "You're a douchebag!"
"Ya mum is a douchebag!"

3. "Hi."
"Ya mum."
"How's it going?"
"Ya mum."
"What day is it?"
"Ya mum."

ya mum by ya mum. November 24, 2006