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!"
by Robert Lewis March 18, 2005
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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"
by jenm December 4, 2004
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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
by Metal Head666 November 26, 2005
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a mythical creature that mostly consist of fast food and cum. It weights over 999999 kg / 2204620,42 lbs. A long the years, were sights of your mum, in particular near Burger-King-Stores
Have you heard of the your mum -Daniel
Shut up, Daniel. You're just jealouse that I still got one -Barack Obama
by aManuMonster May 1, 2022
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your mum
i saw your mums smack dvd bruv
by shonic June 24, 2018
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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?
by WhoEatDaOreo January 14, 2017
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ones mother
(your mum)
oh her mum
(your mum)
by salmonpinkshirts December 30, 2020
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