A mother or a mother of a child. The word can be used as an insult on someone typically on your mum or you.
your mum.
your mum.
Steve: "Hey Jimmy tell me a joke"
Jimmy: "your mum"
And that was the last time we ever saw Jimmy again...
Jimmy: "your mum"
And that was the last time we ever saw Jimmy again...
by Senor Ghost November 25, 2021

Fred: OMG, you're such a gimp.
Bill: What's your mum?
Luke: This milk has gone off. It's all stale and lumpy.
Jane: What's your mum?
Etc.
Bill: What's your mum?
Luke: This milk has gone off. It's all stale and lumpy.
Jane: What's your mum?
Etc.
by Letty : ) April 17, 2008

by BenefitsBenedict October 2, 2019

by jason leland April 27, 2022

by Mano132 December 13, 2021

This is called the last straw phrase. It is not to be used faintly, once you use this phrase understand your may lose your life. It is the equivalent to spitting in a persons face.
Person 1: “Kyle you ain’t on nothing, we took your phone and money and you ain’t done anything”
Kyle: “what are you dumb? Suck your mum”
*FIGHT BREAKS* (You cannot say this phrase without some sort of conflict breaking out.
Kyle: “what are you dumb? Suck your mum”
*FIGHT BREAKS* (You cannot say this phrase without some sort of conflict breaking out.
by TheBritslangTranslator August 19, 2022
