On a messageboard or anything similar, to browse the board very often, but without ever posting anything.
That guy is always lurking, but he never posts.
by Noobert January 25, 2003
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To read without commenting or contributing, therefore effectively invisible to the rest of the group or community. Generally recommended for joining any forum so that you can observe rules, attitudes and prominent personalities without jumping in and breaking a rule, making an ass of yourself, or asking a question about something obvious that you would have learned for yourself if you’d paid attention in the first place.

Online equivalent of attentive listening before speaking; potentially the solution to all Internet faux pas.
That board will rip you a new one if you don't lurk before posting, man.

Lurk moar, n00b.
by Leto II October 15, 2007
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A person who, though standing with a group of "friends," fails to make conversation or say anything of interest. Commonly used as a derogatory term for someone quiet or untalkative.
A: Damn, that kid was such a lurk at the party!
B: Maybe he just didn't know anyone there.
by Schneidahhh December 30, 2005
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A person who repetitively stalks/ convulsively checks someone's Tweets, Wall, Posts, or blog entries without posting or without the knowledge of the person. Someone who regularly checks someone's social interactions from the safety of their dimly lit room.
Noah: Dude! Check out this girls Facebook Album
Brady: Daaayumm
Taylor: I'm defiently lurking her tonight.
by IPreferCatz;) June 2, 2010
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A vocabulary word that is part of the skateboarding community. It means driving around town looking for potential skateboarding spots. Once you have found something worthwhile, you park your car and get out and skate the spot. Once you're tired of the spot, you get back in the car and continue the lurking process. Best done with friends. It's also worthwhile to note that after months of lurking, lurking becomes decreasingly necessary as you begin to know all of the skatespots of your hometown by memory
Kyle: Let's go lurking
Chad: Word
Both proceed to get in the car and start driving around looking for skatespots
Chad: Oh shit look at that ledge there. Park the car!
Kyle: It seems that the efforts of our lurking have come to fruition!
Chad: What?
by cantlandaswitchflip July 15, 2010
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watching someone as though you're stalking them, but at a less degree.
That guy was such a lurk!
by nessa kills October 1, 2003
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The act of looking at someones hidden comments on myspace.

person 1"D00d, that kid has his comments hidden but I want to see what him and my girlfriend talk about."
person 2"Just lurk that shit kid"
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