by WHATS UP FUCKERS March 1, 2019

Person: What are you doing?
Person2: Ya mum
Person: That joke's so old and boring
Person 2: So's ya mum!
Person2: Ya mum
Person: That joke's so old and boring
Person 2: So's ya mum!
by Hev15394 March 20, 2008

andrea-the best ever. she's a mum and a super hero. She cares for her children and would put them over anything. You may end up having fights and arguments with her but u know she will always be there for you no matter what
by Dyl.ross8420 September 23, 2020

apparently the woman who lives somewhere in newport shropshire says that she hates her son and so does everybody else.
by omaewamoushinderu May 24, 2020

The loose, saggy skin and accompanying fat around a woman's midsection that remains after having a baby, which often persists even after returning to one's pre-pregnancy weight.
British English.
British English.
by araneaeee December 1, 2016

When one will travel to the deep depths of the earth for her buns. If the buns aint mum’s best it’s not going in my mouth.
Denny refused to hunker down on a brat after seeing the kroeger brand buns on the counter.
Denny refused to hunker down on a brat after seeing the kroeger brand buns on the counter.
Denny refused to hunker down on a brat after seeing the kroeger brand buns rather than mum’s best on the counter.
by Bun Police August 25, 2022

This phrase is used (mostly in England) as one of the best way to end a conversation. The reason for this is because there is no way to reply to it.
Example 1:
Joe: What do you want for dinner tonight?
Jeff: Ur mum
Example 2:
Bob: Harry you’re so ugly
Harry: Ur mum
Example 3:
Teacher: Harvey, did you do your homework?
Harvey: No
Teacher: Why not?
Harvey: Ur mum
Joe: What do you want for dinner tonight?
Jeff: Ur mum
Example 2:
Bob: Harry you’re so ugly
Harry: Ur mum
Example 3:
Teacher: Harvey, did you do your homework?
Harvey: No
Teacher: Why not?
Harvey: Ur mum
by Ur mum definition February 18, 2022
