your mum 

a simple and effective way to end an argument and often confusing

them: u are such a fat ugly bastard
you: well yeh, YA MUM!!

your mum by kRyStLe July 13, 2003

your mum 

An absolute slag. Also under the definition list for fat whore.

I got jiggy with your mum last night.

i.e.

I got jiggy with an absolute slag last night.

your mum by dututtyyy October 17, 2006

your mum 

Not only an insult which can be hilarious if used in the right context, but also another way of saying "shut up" used perfectly by Lawrence Whale.

"You look stupid today"
"Yeah your mum"
"No really you do"
"Shut your mum!"

your mum by Robert Lewis March 18, 2005

your mum 

Surely refers to the fact your mum is easy, or suggest that the person saying it has indeed slept with your mum

Person 1 "Shut up, your such an idiot"
Person 2 "your mum"

your mum by jenm December 4, 2004

Your mum 

The best comback in the world!...'your mum'

"Your mum's so dumb she got hit by a parked car"

"Your mum's so fat she puts mayonaise on her asprin"

Your mum by the village people June 18, 2006

your mum 

an extremely stupid insult by people with a small vocabulary and limited IQ. can be funny in rare occasions.

sped: man what the hell is that funky smell
slightly funn sped: your mum

sped: what long and hard and full of sea men
slightly funny sped: your mum

your mum by Metal Head666 December 28, 2005

your mum 

A dumb joke that idiots use like me.

idiots also use it for roasting people but we all know that won't work

roast: person: boii you look like saggy wet noodles

idiot: like your mum?

your mum by WhoEatDaOreo January 14, 2017