ur mum is what people say when they don't want to say an actual answer.
I had passionate sex with ur mum last night.
Friend 1: What day is it?
Friend 2: ur mum
ur mum is often used by a British person. Also is often used as A JOKE or a INSULT
person 1: what time is it ?
person two: time to fuck ur mum
person 1: ur clapped
person 2: I was making clapping noises with ur mum last night shut up fam
Ur Mum is a person that is usually really hot or really fat ( in American jokes ) spelling it in an American way ( Ur MOM ) is unacceptable.
Omg! That persons standards are so high they could date Ur Mum!
"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"