the british way of saying the classical UR MOM joke so if u say ur mum GET OUTTA HERE
"Ur mum" is a term used for people who "accidentally" say it on telegram in a group with teachers as of July 7, 2021.
Hamiza: TKRS dengan siapa?
Ikhwan: "Ur mum"
when someone fucks ur mum they say ur mum to tell you that they fucked ur fat mum.
ex:
them: 'what did you do'
you: 'ur mum'