go suck your mamma's tit 

This means you are acting like a child. A child young enough to still be breast feeding . Basically telling the person that they are tantruming like a 2 year old child. typically said during an argument.

Oh quit your whining, and go suck your mamma's tit! I've had enough of your bullshit! Act like a grown up for Pete's sake!

go suck your mamma's tit by SweetieOne December 2, 2017