1)Someone who files many frivolous lawsuits against people or companies who use something he thinks he owns but legally doesn't. This is known as "Patent Trolling" & "Trademark Trolling."

2)A person who starts arguments in forums or starts a hateful forum topic.

3)A person who turns a comments section into a heated discussion that has nothing to do with the topic.

4)Hacking as a prank, sometimes referred to as "4chaning" or "Pulling a 4Chan."

5)Wikis mass publishing biased, spiteful, & false information, such as Encyclopedia Dramatica, Uncyclopedia, Conservapedia, & Metapedia.
A troll (company) sets up a bridge (claims copyrights over a word) & demands a toll to cross the bridge (wants payment for anyone using that word in one of their projects) or it will eat (sue) you.

1)EDGE attempting to sue any developer using "Edge" in the name of their game is a very well-known act of Repeat Trolling.

2)Bethesda Softworks's attempt to sue Mojang over their planned use of "Scrolls" in an upcoming game title.
by ThatEvilRedhead August 05, 2011
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deliberately arguing with complete fallacies on forums, comment threads, or message boards to get leets and other users pissed off by the troll's "ignorance"
User: Obama is a great president.
Troll: Obama kills babies and is a terrorist Muslim from Kenya
User: no! you are stupid (expletives may follow)
Troll: (continues to argue with fallacies)
User: (follows with angrier reply)
(other users may join in on either side)

NOTE: trolling may involve spam
by someguythatsboard November 09, 2010
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To use the internet to start problems, insult, or hurt others. An action that only usually affects the person trolling.
Usually a very bored, lonely person with no friends. Or a punk ass kid.
"My AOL account was shut down because I was trolling in a chatroom."
by tmofft January 22, 2005
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20 year old men who go on minecraft to fuck with little kids
Im going to start trolling.
by ChineseDiabetes June 25, 2016
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Trolling is a method of fishing where one or more false or oxymoron statements, are thrown into a conversation or simple message reply baited with sarcasm and witticism meant to trick, confuse or just insult the recipient
*wearing rubber boots* "your boots untied"

you-"you're kind of dumb for being so cute" recipient- "don't you mean "you're kind of cute for being so dumb' " you- "see! you're so smart, just too damn stupid for your own good" recipient-"are you trolling me right now?" you- " yes you're cute and smart....just kidding, but not really, seriously though,are you catching any of this?" recipient- " you trolled me hard"
by skittlebrain January 30, 2014
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1. To make inflammatory comments on the internet for the purpose of starting controversy and gauging people's reactions.

2. What idiots say they were doing when they make an uneducated remark that is quickly discredited.
1. Troll: Halo invented the FPS video game genre!
Non-asshole: Shut up, you troll.

2. Will: Nixon was the best president of all time!
Michael: No he wasn't. Haven't you heard of Watergate or the Controlled Substances Act?
Will: ...oh, I'm just trolling.
by Richard Milhous Nixon July 28, 2009
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When you're so bored that you go on to mormon.com and ask them how erasers work.
Person: Hey, I have a question.
Mormon: Yes?
Person: How do erasers work?
Mormon: Why are you trolling us?
by Moozels December 29, 2010
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