ur mum 

"ur mum" is not ur actualy ur mum but a person that represents ur mum
it is used when you are really stoned or dont hav a good enough come back

Jon: what does my cooking taste like?
Michael: ur mum

ur mum by Germans December 12, 2006

ur mum 

a phrase used by someone who has no desent come back or is just a bit of a retard

A: what you doin tonight?

B: ur mum!

ur mum by Harry Woodcock January 18, 2008

ur mum 

when ur british friend tries to roast you

when u insult your british friend they will most likely say this to you they will say "I know ur mum is tho."

ur mum by lizzie.io December 20, 2019

Ur Mum 

The thing that a retard says after u say something like “What did you do today?” Then he answers “Ur Mum”

“What’s ur hobby?”

“Ur Mum”

*Slaps him*

Ur Mum by Shivi Wivy January 30, 2019

ur mum 

a term used to describe when you have no other comebacks to say or referring to morgz mum who is too amazing for this world but at the same time bald martin is better than her

you're an idiot. ur mum. OHHHHHHHH

ur mum by Alana Cirbila April 17, 2020

Ur mum 

A term that can be used universally in replace of any known word. It can be used in sentences and probing questions

Gary: what do you think of the economy?
Bob: ur mum

Ur mum by Gerchigga eltingville June 28, 2017

Ur Mum 

1. A thing people say if you have a british accent and someone asks you a question and you're:
1A. bored
1B. insulting somebody
1C. acting like you have a british accent on the internet and insulting someone/are bored
2. A thing that retarded people say and think that when they do they're cool
3. The most amazing phrase in the world, as it has been here for so long and it has not died out.

1A.
John: "Hey, I went to the movies today."
Ben: "Huh. So did I"
John: "So what movie did you see?"
Ben: "Ur mum. >:D"
1B.
Joe: "You're such an idiot"
Sean: "Well, ur mum's so stupid she climbed a glass wall to see what was on the other side"
1C.
dudelizard1337: "WAIT?!?!?! WHAT DID YOU SAY LIKES TURTLES?
awesomeguy01: "Ur mum"
dudelizard1337: "wait... is that a bad thing?"
2.
(same as 1B)
3.
Johnny in 1975: "Ur mum's so fat she played pool with the planets."
Johnny in 2005: "Ur mum's so fat she... I got nuthin..."

Ur Mum by bakagain November 22, 2011