Top Definition
op
Short for Original Poster. Used on online message boards and forums.
The the message the op posted is idiotic.
by Joe December 31, 2003

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OP
1. Overpowered
2. Original Poster: The person who begins the selected thread in that particular forum.
1. Demons are OP in this game, nerf them please!
2. The OP is wrong, what we need to do is give birds a buff instead.
by Jack Dos Puntos December 31, 2006

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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)
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!"
by Cameron Kay January 01, 2009

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Original Poster - Used in forum talk to refer to the person that started the thread.
To the O.P., what did you mean by "x, y and z"
by Evan Neus May 14, 2007

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OP
1. n. abrv. Original Poster - The original poster of a forum or imageboard thread
2. n. abrv. Original Post - The first post in a forum or imageboard thread
3. n. abrv. Opening - A common abbreviation for opening, most commonly used in Japan or regarding anime
4. n. abrv. Overpowered - Statement that something is too powerful, usually in a game
1. <someperson>The OP is stupid

2. <someperson> Sauce pl0x
<otherperson> Read the OP, the source torrent is there

3. <someperson> Anyone seen the new Haruhi OP?
<otherperson> yeah it's awesome

4. <someperson> Wow the chaingun is really op
by ajf.me November 29, 2010

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OP
A faggot
~on Omegle
You: What is OP?
Stranger: A faggot
You: yes, *reloads*
by hlsforever June 14, 2011

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op!
an expression usually called out immediately after a comically ironic or unexpected situation comes forth; also used when one contradicts someone or him else.
illy: DUDE, dina is totally diggin me tonight
*dina walks in*
dina: illy, hook me up with mo
D: op!
by shsthaniel November 30, 2010

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