One who purposely and deliberately (that purpose usually being self-amusement) starts an argument in a manner which attacks others on a forum without in any way listening to the arguments proposed by his or her peers. He will spark of such an argument via the use of ad hominem attacks (i.e. 'you're nothing but a fanboy' is a popular phrase) with no substance or relevence to back them up as well as straw man arguments, which he uses to simply avoid addressing the essence of the issue.
Volourn
by Exitium October 10, 2003
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guy 1: yo did you see that crazy 13andincrediblycut/andy harglesis guy spamming on weight lifting vids again? hes everywhere

guy 2: yeah but hes a sad loser ... a troll ... thats what andy harglesis is
by troll hater May 4, 2012
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Ad hominem attack directed at anyone whose opinion is different from your own.
Someone actually responded to my comment on youtube with an opinion that's different from mine. I called him a troll and told him to go f himself. And, just like a troll, he refused to answer my profound political retort.
by BigBadMrReality May 30, 2016
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one of the most overused words on the Internet which has matched lol for meaninglessness.

supposedly means someone who is disruptive or mean on a message board, but now extends to anyone who is ever disagreeable or doesn't join in on the circle jerk.

some people also take it to mean the act of reading and posting on message boards.
ZOMG you're such a troll!

omg stop trolling

youz trollin

stop stating you ropinions as facts troll
by dirtyklingon March 22, 2010
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Plural of troll.

"One who posts a deliberately provocative message to a newsgroup or message board with the intention of causing maximum disruption and argument"

Source: Alien Entity (author) and the Urban Dictionary page that houses it.
The above definition and more can be found by clicking the link for the word "troll".
by grima_an November 28, 2004
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1. A large, brutish creature of European myth, often lacking in intelligence. Sometimes compared to the Japanese oni.
2. A dumbass who makes idiotic posts in message boards newsgroups for the sole purpose of pissing people off, often lacking in intelligence. Sometimes compared to people who pass you by on the sidewalk then grab you in inappropriate places.
1. "AAAAAAHH, it's a troll!"
"Protect the women and children! Grab your torches!"
2. "AAAAAAHH, it's a troll!"
"****head... we banned him five times and he keeps making new accounts about how he pwns all and that he>>>>>>>>>>>>>>>>>>>j00!"
by Syckls August 15, 2004
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Like Troll Dolls, The Troll is rather fubsy, making her supernatural deceptiveness all the more insidious to her unsuspecting victims. With stumpy little legs stemming from her stout stature, The Troll comfortably dwells in damp and dark places, such as under rickety old bridges or on the inferior second floor of a college residence hall. Her knappy, afro-textured hair bears unquestionable resemblance to the multicolored tangled nest of hair atop Troll Dolls' heads. Her wicked red eyes are themselves a life-sucking force that reflect the blazing depths of hell that reside deep within her shattered soul. Whoever said that Reese Witherspoon and Anna Faris are cursed with unfavorably large foreheads must never have encountered the gaping expanse of flesh between The Troll's demonic eyes and grisly hair. 

The Troll is undoubtedly possesses many psychopathic personality traits. Entirely detached from reality, The Troll distorts the truth about not only present situations but also her past in an unsuccessful attempt to make herself more appealing. Her unforgivable duplicity results from her obstinate emulation of others. The Troll's performs a self-prescribed apathy that supposedly makes her incapable of feeling a range of human emotions. Thus, The Troll is uniquely misunderstood in her isolation from society. This destructive world view nurtures her egocentricity and arrogance.  
SMC Student #1: "Miss Tina makes the best cookies! They are so warm and gooey!"
The Troll: "In high school, everyone asked me to come over and make cookies for them. I make the best cookies. Want to know my secret as to how to make them gooey? I smash them."

The Troll: "...And I could totally tell that he was an engineer. All engineers have such low, raspy voices."
SMC Studnet #2: "Ummm that's not true at all. My brother is an engineer major and he doesn't have a low voice..."
The Troll: "..."
by furryfriends4ever December 29, 2011
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