Urban Dictionary: Mr. U

Is a (serbian,croatian,bostinan)Swear word that litearlay means GO BACK INSIDE YOUR MOTHER'S PUS*Y!

Alo cigane mrs u picku materinu sa tim gvozdjem.
Yo,Cigane go back inside your mother's pussy with that iron.

A famous gym teacher. Looks like a monkey and it very scary.

Holy shit bro, Mr. U is coming out of the locker room and he’s pissed!