Dirty transformer

A dirty transformer is when a woman gets up during sex and screams "BULMBLEPEE" then pees on your face.

Dude 1: Dude, I totally hooked up with Monica last night.
Dude 2: Nice, did she do something nasty dude?
Dude 1: Hell yeah dude, she threw a dirty transformer at me.
Dude 2: Dude.