i'll piss on your shoes - A silly threat that means you're so happy or so mad you'd pe

A silly threat that means you're so happy or so mad you'd pee on someone's shoes just for fun.

I'll piss on your shoes because you failed my math test.

You said my joke was bad. I'll piss on your shoes and tell my brother.

I'll piss on your shoes if you don't stop eating my sandwich.