I'll Put it your ass, like i put in your mum
This phrase is used when someone wants to give you a real beating, and they’re not joking around. The mum part is just a way to say your mom might get involved too.
I'll put it your ass like I put in your mum, and your mom is gonna laugh.
You stole my lunch, so I'll put it your ass like I put in your mum.
You're gonna get it, I'll put it your ass like I put in your mum.