OP
MMORPG (and other online games) slang, literally meaning "overpowered".
That gear is really OP!
By caelumsixsmith
What's on your mug?
Op
1. A undercover police 2. A person usually that can't be trusted also known as a snitch
" instead of the police they sent a federal op".
By Jinny Green
op
A word referring to the titular song Gangnam Style in where the artist known as PSY is seen to state the words multiple times throughout it.
op
By nice.jpg
Op
It means overpowered
Yo Markiplier is op at almost every game
By The group chat
op
Telephone Operator
We dialed 0 (zero) and messed with the op.
By roadlet_411