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

jacks mum is fit

fax + NYASH

jacks mum is fit!
fax and has NYASH

by ansfuibidsg June 28, 2022

Ur mum

Just simply ur mum.

Person1:ur mum?
Person2: agreed.

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

ur mum

a slang used as a joke.

"Who are you?"

"ur mum."

by caramel rice cake July 13, 2024

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

Fat

It’s simple: fat. What more do you deman from ur mum?

by TheRunawayWagon March 24, 2019

Mum-off

To have a verbal contest over progressively worse mum jokes. It usually goes around full circle before someone gets mummed-out.

Kevin: Your mum's a slapper.
Joe: Your mum is a bigger slapper!
Kevin: Your mum invented being a slapper!
Joe: Your mum wrote the slapper's handbook!
Kevin: Your mum followed every move in the handbook!
Joe: Are you challenging me to a mum-off?
Kevin: Your mum likes a challenge... etc

by rob1982 January 3, 2013