Skip to main content
Search Urban Dictionary
Back
Start typing to search.
Searching
...
Dictionary
Store
App
Chat
Blog
Help
Words of the Day
Browse
Add a Definition
User Settings
Definitions by lizzie.io
ur mum
Share definition
Flag
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
Get the
ur mum
mug.