Ur mum 

she is not real. you where adopted. But hey, at least they wanted you. :)

Fake Mother: Yo, child. I aint ur mum fam.
Child: Ok boomer

Ur mum by lalala whatever February 26, 2020

Ur mum 

Crusty toenails

I think I have ur mum

Ur mum by Papi macabi April 15, 2020

ur mum 

The ultimate insult that can work on anything just by slightly altering someones sentence with 'ur mum' .it can also be written as 'ur mom'.

person 1: "you're fat"
person 2: "ur mum is fat"
person 1: "that insult is so unoriginal"
person 2: "ur mum is so unoriginal"

ur mum by The Epicster May 3, 2020

ur mum 

i ride ur mum all night long

hi son im going to ride ur mum

ur mum by urnan dictionary 12329 July 7, 2020

Ur mum 

Ur mum is ugly 😃👍❤️

Ur mum is ugly 🥰

Ur mum by spacelings September 11, 2020

ur mum 

The defenition of 'ur mum', coming from the ancient greek mythology as 'ureono mummus', is a term often used by people who try to convince the person they are talking to, as a form or manner to tell them they are 'gay'.

'Hey how are you doing?', friend 1 said.
'ur mum', friend 2 replied.

ur mum by Banaan1234 September 14, 2020

ur mum 

an insult that is so painful to the opponent that most of the time he just dies

Jeff: your birthday was good
Sam: ur mum was good
Jeff: *dies*

ur mum by Caverace November 11, 2020