being an annoying asshole, sometimes intentional. Can be demonstrated via verbal means, texting, or the internet
Person 1: Jack is such a jerk!

Person 2: Yeah he's trolling mad hard
by Jack "trolling" Crowder November 25, 2010
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A person who pretends to support an ideology, often taking it too far, in order to discredit the ideology. They accuse someone of being a concern troll for simply bringing concerns or not being fully committed to the ideology. Their goal is to make the ideology look dogmatic and extreme to outsiders, as well as encourage paranoia, tensions, and infighting among supporters about who is really a supporter.
"In our last 'Flat Earth' meeting, David brought up a concern about how we would explain the moon's movement if the Earth was flat. Emily said that she was concerned that David was a concern troll because obviously the moon doesn't exist. I stated that I have concerns that Emily might be a concern troll troll and was trying to discredit our movement, but then she also accused me of being a concern troll. The rest of the meeting consisted of everyone arguing about who was really a flat Earth believer. Stacy tried pointing out that she was concerned we were getting nothing done and we should focus on our agenda, but Tom called her a concern troll for trying to distract everyone from their concerns that there might be concern trolls and concern troll trolls among us."
by concerntt April 18, 2022
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Hanging one's penis out of the back of a moving vehicle, in the pursuit of poonany, much like fishing.
"Hey Fritz, what the hell are you doing back there"? "Leave me the fuck alone. I'm trolling!"
by bowtie bob June 8, 2007
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In Michigan it refers to people that live in the Lower Peninsula of the state, under the bridge.
Hey Troll, get out of are upper peninsula!
by Wigga_Hater January 2, 2004
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Trolling is an art. It is hard to get the hang of, but simply put, trolling is causing misery for others in a way that is funny for both you and any bystanders not affected.
Person 1: Hey, this lemonade tastes like piss.
Person 2: That's because it is piss.
Person 1: Wtf?! You trolled me!
Persons 3, 4, and 5: Lolwut

(trolling. just putting this in here so it can be posted)
by 8bitmadness June 22, 2011
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A person who constantly is annoying for personal pleasure. These people do not bathe, change clothing, or brush their teeth. They are highly unwanted among friend groups and are looked down upon.
Scott you are being a fucking troll go away!
by Sam Arnold February 23, 2006
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The thing on the world of warcraft ads on this page.
The troll holds the "play free now" sign.
by jkjhkjhkjhk December 9, 2011
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