Top Definition
Being a prick on the internet because you can. Typically unleashing one or more cynical or sarcastic remarks on an innocent by-stander, because it's the internet and, hey, you can.
Guy: "I just found the coolest ninja pencil in existence."
Other Guy: "I just found the most retarded thread in existence."
People that go around at lunch and put you down. Trying to make a joke out of something that's stupid. You sound like a retard and only make the group your with laugh in reality.
"Hey, Here's one"
*Girl stops*
*Guy laughs*
"See that scarf? Did you get it from the toilet paper store?"
*Whole group laughs"
by Idontknowwhoiamdoyoulala January 25, 2012
when you go annon on tumblr to make witty remarks about a friend who looks like tommy from the power rangers
Hey Tommy save any mosters from destroying angel grove today? Trolling

The flute thing you played as the green ranger was kinda gay bro?
by zenmasterdre December 30, 2011
Fate's (or generally,a general e-dumb's) action after realizing he can not win a discussion.
Fate: Because if everyone has a ban hammer,it's no longer overpowered.

Iorek: So it's not overpowered by being a ban hammer,but because not everyone has it?

Fate: Yup.

Iorek: That's when you start trolling..
by Sunabozu Byrnison April 02, 2011

Anyone stopping off at remote public toilets: hoping/looking for some: - gay politician,homo rockstar, queer chef or meth smoking evangelical preacher - action!
trolling, Ted Haggard, George Michael, Ron Davies and probably Gary Rhodes.
by might be a stamp collector November 18, 2010
The act of experiencing the effects of MDMA (aka ecstasy) while under the influence of a psychedelic substance (such as LSD (aka acid) or psilocybin mushrooms), or vice-versa.

Synonym to the terms "candy flipping" or "hippie flipping".

Etymology: A portmanteau (aka. a word blend) of the words "tripping" and "rolling".

In contrast to the words "stumbling" and "falling", which blend to "stalling".
Last night was epic, and I can legitimately use the word 'epic' cause I was trolling my balls off.
by Psychonaut1357 July 26, 2010
Purposely pissing people off on Facebook. This can be done by commenting on statuses, posts, walls, pictures or videos.
Status: Person 1 had the best afternoon ever!

--Comment: why are you so fat?

Status: Person 2 is going to the movies!

--Comment: the movies is for ass holes.

Status: Person 3 's hair is really short now!

--Comment: contrary to popular belief, no one gives a shit.

Status: Person 4 loves purposely pissing people off on facebook!

by Timmy G. July 23, 2009
when your mom comments on your Facebook status with the intention of starting stuff. It can be really annoying, but it's fun to accuse her.
"mom I posted that status a minute ago, and you're already trolling
by shortguy95 December 24, 2011
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