Some one's mum , mother , the thing that gave birth to them
Woman: How are you today sir?
Man: Your mum

Jeffry: HEY TOM...YOUR A FILTHY LEBO
Tom:Your mums a filthy lebo

A: Hey tom guess what...
B: yeah what
A: i banged ur mum last night

OIIIIIII..........YA MUM

Student: Miss Miss
Teacher : Yes henry?
Student: i just realised that your mum
by kingfishtunamarlin November 20, 2007
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Stupid insult which townies say to get a kick out of life.
Person: You faggot
Townie: Oh yeah? Your MUM!
Person: Okay yes My Mum what about my mum?
Townie: Your Mum thats what its about
Person: Your an Idiot
*Townie runs off crying*
by Owner of your souls March 15, 2004
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A poor insult usually used by someone of limited intelligence as an insult.
See trev
Person A: You are an unintelligent troglodyte
Person B: Well...Your Mum!
by Munk July 23, 2003
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A comeback that can be funny if you use it at the right time, but not funny if you overuse it.
Good example:
Antonio: Who's doing cork? (For geography project)
Georgia: You mum is!
Mary: Is your dad's name cork?

Hahahahaha.

Bad example:
Person 1: Hey, you penis is so small you can hardly see it!
Person 2: Your mum.

Not funny :|
by Georgia--xo-- September 2, 2007
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Sumthing that is said when someone bums you out and you've got no comeback for it....
"You look so cool with those man-tit's of yours"
"Your Mum!"
by tDRAW June 11, 2005
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a great word, can be said anytime and never gets over-used.
D'you wanna come over my house tonight?

Your mum wants to go to your house tonight!

You Suck!

Your mum sucks!
by urmumgotowned March 27, 2008
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ya mum is so fat joke ha ha
your mum is so fat she whent out in high heals and cameback in flip flops
by jammasterflash September 24, 2007
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