op

1. Overpowered (usually in a video game, in which a person or group becomes or is too powerful; has become very popular in the mmorpg crowd)

2. Original Poster (in forum-style collection of comment; the first person to comment or POST)

3. Operation (usually occurring in military gaming)

4. Operation 2 (second half of co-op or cooperation)
5. Opening. Usually refering to the opening song of an anime.

1. "Paladins have become way too overpowered!"

2. "Why is everyone getting so angry, the op was obviously kidding?!"

3. "In COD4 I always play spec-ops (special operations)it's the only way to roll."

4. "I love halo because it supports co-op!"
5. "I love Full Metal Alcamist's op!"