Ur Mum-a common comeback for when someone says....practically anything to you
Person 1:Hey Carl Whats up?

Person 2:Ur mum

Person A:I had spaghetti last night.

Person B:I had Ur mom last night.

Joe:Im so worn out from basketball..

Carl:Im worn out from Ur mom.
by Mommy Milkiess December 6, 2021
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ur mum is ur mum
ur mum is sus she went to the body shop
by lovetodie June 19, 2023
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Person #1-Hey bro, Wanna make out?
Person#2-No, Thats Ur Mum
by BigPPMcGee October 10, 2019
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a phrase you use when you have no good comebacks.
"you are an ugly ass"
"Ur mum"
by mez_is_cool_sort of February 24, 2022
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ur mum is what people say when they don't want to say an actual answer.
I had passionate sex with ur mum last night.

Friend 1: What day is it?
Friend 2: ur mum
by iwillfuckurmum June 8, 2022
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