Ur mum

the british way of saying the classical UR MOM joke so if u say ur mum GET OUTTA HERE

UR MUM NO THATS JUST NO

by U3U May 14, 2019

ur mum

the mysterious figur who will come and beat you up if you shit in the sink at exactly 4:20am when you shout among us at the top of your lungs 69 times- she will also end up skimming your family.

What are you doing later?
Ur Mum.

by asdfghjkjifhbdkjnmgdlfjbhikwne July 2, 2023

Ur mum

Just simply ur mum.

Person1:ur mum?
Person2: agreed.

by Ur mum 🦒afraid? I know 🦒🦒🦒🦒🦒🦒🦒 April 29, 2022

Ur mum not cool

It means ur mom not cool

Jimmmy hey Ron ur mum not cool
Ron No u
Jimmy fucking dies

by Nooblegend2769 May 7, 2020

Ur mum

A joke that nobody likes

For example Aiden: Ur mum
Everyone: nobody cares

by KaylaYT February 5, 2022

Ur mum

Insult which has no meaning inside ur bum if u want cocaine sex soz I can’t help u but I sell weed at www.childcaptivity.com so come get some pornos

Alex:ur mum

Ur mum: no ur mum! Cos ur mums dumb! Cos she didn’t know what I did to ur dad yet!!!

by Slnkythemadnman December 29, 2019

ur mum

a slang used as a joke.

"Who are you?"

"ur mum."

by caramel rice cake July 13, 2024