a response that can be used to reply to most questions.
e.g
Zoe: "what are you doing?"
Me: "ur mum"
it can also be used as "ur dad, ur nan, etc etc"
what are you doing? "ur mum"
someone i fucked
thats right, im that kid from xbox 360 10 years ago bitch
me: i CBTed ur mum
Your hot mum that comes to my house every night for adult playtime 😩
Me: I’m having a kid with ur mum
You: WTF
Ur Mum-a common comeback for when someone says....practically anything to you
Person 1:Hey Carl Whats up?
Person 2:Ur mum
Person A:I had spaghetti last night.
Person B:I had Ur mom last night.
Joe:Im so worn out from basketball..
Carl:Im worn out from Ur mom.
Person1:ur mum?
Person2: agreed.