søk opp hvilket som helst ord, som the eiffel tower:
ugly and preppy
ur so upnus
av robyn 20. september 2003
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.
av liquidfuse 22. januar 2011