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'
she is not real. you where adopted. But hey, at least they wanted you. :)
Fake Mother: Yo, child. I aint ur mum fam.
Child: Ok boomer
a very lame come back that only losers use to defend themselves in arguments that nikal uses
a word that will end any argument
well ur mum.......