Someone who deliberatly pisses people off online to get a reaction

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

Before the Internet, there were the mythical Trolls of old who ate farmer’s goats.

After that, there were and are the semi-human versions of trolls that still exist today in all regions throughout the world.

Trolls can be divided into groups depending on where they live, such as Beach Trolls, Hill Trolls, City Trolls, Suburban Trolls, Valley Trolls and a couple other categories which take on unique characteristics depending on their surroundings.

All trolls are socially predatory creatures and when young are usually obsessed with their exterior appearances, while neglecting development of their blackening souls.

Their interior ugliness comes out as they age, and they, usually, let their outer appearances go to hell, so that they are easily recognizable. But, the young and middle-aged trolls will sometimes fool you with their charm.

All trolls are shysters and tight-fisted money grubbers who will screw you on any deal while making it out like you are the one coming out ahead. They will usually always greet you with a smile and a handshake. Sometimes, they will call you “brother” or “lady” to throw you off track.

All trolls are shit stirrers, lechers & trouble-makers. They would be the first to try and get your “significant other” in the sack, screw you out of some money or slander you.

Ad hominem attack directed at anyone whose opinion is different from your own.

1a. Noun
One who posts a deliberately provocative message to a newsgroup or message board with the intention of causing maximum disruption and argument.

1b. Noun
A person who, on a message forum of some type, attacks and flames other members of the forum for any of a number of reasons such as rank, previous disagreements, sex, status, ect.
A troll usually flames threads without staying on topic, unlike a "Flamer" who flames a thread because he/she disagrees with the content of the thread.

1c. Noun
A member of an internet forum who continually harangues and harasses others. Someone with nothing worthwhile to add to a certain conversation, but rather continually threadjacks or changes the subject, as well as thinks every member of the forum is talking about them and only them. Trolls often go by multiple names to circumvent getting banned.


2a. Noun
Sometimes compared to the Japanese ‘Oni’, a troll is a supernatural creature of Scandinavian folklore, whose race was thought to have carried massive stones into the countryside (although actually the result of glaciers). Lives in hills, mountains, caves, or under bridges. They are stupid, large, brutish, hairy, long-nosed, and bug-eyed, and may also have multiple heads or horns. Trolls love to eat people, especially small children.
The Females of the species are generally kinder and more intelligent, but still fairly hideous.

2b. Noun
An aesthetically repulsive person, often has terrible social skills, usually a woman. See Troglodyte.

2c. Noun
An old, unattractive gay man who hits on young men, and cannot seem to understand that they want nothing to do with him.

3a. Verb
To fish by dragging bait behind a moving motor-boat.

3b. Verb
To cruise for immediate sexual pleasure without commitment. Often characterized by an older man, seeking a younger man, or any man for immediate, often anonymous sexual contact.

4. Noun
A joke disguised as an outrageously stupid statement or question, intended to trap people into believing it is serious.

5. Verb
To use acid and ectasy simulataneously. See trolling.
(Comes from ‘Tripping’ on acid, and ‘Rolling’ on ecstasy)

6. Noun
A toy popular in the 1980’s, a ‘troll’ is a cute little plastic trolls with fluffy, colored hair.

An angry monster who lives under a bridge, eats goats, and vents his rage on youtube.

Someone who is purposefully posting on a forum/messageboard/site sith the sole aim to irritate the regular members.

Contrary to popular belief there is much more to internet trolling than posting "OMG UR ALL SO GHEYYYY!!!1" "OMFG TRIVIUM SUX ASS U FAGS LOL" and the like. People who post such things will usually be one-post wonders and get banned, however the more experienced troll will attempt to cause some sort of havoc under the admins radar.

Common examples of trolling:
The long-term troll:
These guys don't mind waiting around for the fun to begin. They may pretend to be an average n00b, and give themselves the stereotyical interest(s) of the average member of said forum, then once having a few posts they will gradually try to spread dissent. This type may even pretend to be pally to the admin and get their msn (and try to crack their account password of course) whilst causing general disruption. May act under other proxies and slate these fake trolls on msn to the aforementioned gullible admin. These people, to be frank, usually have no life and love bringing message boards to their knees by putting considerable time into their carnage. If they crack the admins password the board is doomed.

The sophisticated troll:
This type will usually have some sort of distaste for whatever the said message board is discussing and try to cause annoyance as opposed to destructiveness. They will parody the members and see how much they can get over their heads. Subtle pisstaking being their route. They'll usually get banned in the end but will annoy an entire community using this drawn out approach.

The faker troll:
A clever troll, the main aim of the game is to, ironically, act really REALLY stupid, this trolls aim is to argue with members incoherantly, usually using text speak. This is a ploy, the troll only needs to spend 10 seconds writing the babble when the member wastes 10 minutes writing a much more wordy reply. The troll will reply with a stupid rebuff making the member post as many long replies as possible. Using the members weight against them and wasting their forum time... If they are good then their act will be believable and they probably won't get banned unless the admin is strict on txt tlk.

The rank and file spammer:
These are the first to pop into peoples minds, they are similar to the examples stated in the first paragraph. No previous experience necessary, this lot will swarm in, again, usually under proxies to maximise the destructiveness, and spam the place to hell. Only causes mild irritation if not in large numbers.

Join any popular forum for a year and I guarantee you'll see all of these.