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179.
A person, usually having social deficiencies off-line, who enjoys messing with with people online just to piss them off and masturbate to the lulz.

Trolls would never pull their antics off-line because they would be murdered.

Also called a "Lolfag"

Troll- "I did it.. for.. the.. LULZ!!" *grabs tissues*
by Anon_Ihmus April 27, 2008
 
71.
Someone who is very tall, ugly, and stalks someone. They may have cross eyes
That girl Amy is a total troll and takes pictures of my friend back during lunch. What a stalker!
by Banana Bitch man October 05, 2010
 
72.
Someone who likes to provoke argument on a forum or bulletin board.
That Grier is such a fucking troll!

Oh no, Grier, what the hell are you doing, are you trolling again? You're so harsh!
by Lewis Harrison Williams May 16, 2008
 
73.
A troll is a commonly used insult. Synonyms are toad and baboon. The word troll is used when someone is acting rather trollish.
Will day is a troll
by Whalespout1318 June 30, 2014
 
74.
One who engages in acts during multiplayer online games that bother other gamers. Such acts may include but are not limited to: trapping a strategically placed teammate in an FPS until the enemy kills them, modding a game to gain an unfair advantage, and/or making disruptive sounds intended to inhibit concentration on gameplay. Some may do it for the lulz, but most are of the "misery loves company" type.
Player 1: That was a great match we just had.
Player 2: True, but you did see those two boosters and the noob with the pro kill/death ratio, right?
Player 1: Yeah. I've already reported all three trolls to the game developer (and the console's moderators).
by Semper Paganus June 09, 2013
 
75.
A person going in to a semi-large group usually more than 8 with the soul intention of ticking off one if not most of the group for the purpose of creating their own entertainment and bringing out the gullible stupidity in others
In a game of CoD gun game Try hard: finally I got off of that ridiculously stupid sniper Troll:(knifed try hard) Try hard:I hate you you suck Troll: u mad bro?
by gungametroller May 21, 2013
 
76.
Marius guy from that random haked computer
Person 1: What the hell is that person drooling over a computer!?
Person 2: Yeah he's Marius troll, just ignore him.
by ThatRandomDudeGuy April 25, 2013
 
77.
A person that request Facebook friendships for the purpose of traversing privacy settings
Person 1~ I sall where Billy is with Becky on Facebook
Person 2~ How did you see that, I thought his profile was private
Person 1~ it is but I made fake account and trolled his wall
Person 2~ who was the troll?
Person 1~ Wendy, that hot chick on the cheer squad
Person 2~NiCccccEeeee
by Glitchin February 08, 2013