ur mum

a word used as a comeback when you have no other comeback to use: a word used to get someone to leave you alone

another term for "your mom"

"Hey what are you eating?"
"ur mum."

by olafsfluffyD October 16, 2015

ur mum

The insult of all insults. When you're stuck and have nothing to say, just say 'ur mum'.

"This pizza is still warm"
"Ur mum's pussy is still warm...hurhurhurhur".

by p00_p00 August 30, 2006

ur mum

wen ur frin bein a cheky cunt n da call of duds u jus sey ur mum

"fukin cheky cunt ur mum is hairy"

by YOOOOOOOOOOOO April 1, 2015

ur mum

gae

ur mum gae

by Taytek May 21, 2019

ur mum

The apparent zenith of comebacks, used almost exclusively by 12-16 year olds.

Person 1: You sir, are a veritable nincompoop.
Person 2: ERR UR MUM LOL!1!

'I AD SEX WIV UR MUM LOL'

by Dougal September 27, 2004

ur mum

the british form of "ur mom", a overused comeback that is funny if used as a joke or your kidding when u say it.

Person:Fuck U!
British Person: I fucked ur mum!

b_i_t_c_h678: i have sooo much homework.
this1person923: ur mom has so much homework! OH! BURN! WAT NOW!?!?!?!
b_i_t_c_h678: wtf lol

by The girl who wants to have Ryan Rosses babies July 17, 2006

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

by Germans December 11, 2006