UPnU

To smack down, to destroy, to annihilate. Up in your face, in your grill.

A group of online gamers that play on all gaming systems.

Player 1: Have you guys played against anyone who has UPnU in their tag?

Player 2: No.

Player 1: Man they kicked our ass last night.

im just messing

Joking, kidding, messing around.

Hey did you see that new movie?
Your mom saw that new movie!
What?
Im just messing?
Okay