Someone who Twitters obsessively on the social networking site "Twitter." Twitter + Geek = Tweek. Often appearing to be normal people on the surface, they will quickly reveal their inner geek whenever anyone mentions Twitter in a conversation, at which point they will tell everyone within earshot about all the hilarious and uninteresting things their friends and acquaintances have recently tweeted about.

See also "Twatter", someone who tries to accumulate a large following on Twitter in order to hide the fact that they are actually a giant twat.
Rational human: "I can't believe CNN is reporting on what politicians are tweeting from the halls of the Senate...or that politicians are tweeting in the halls of the senate, for that matter."

Tweek: "OMG I LOOOOOVE TWITTER!!! My friend Jessica just tweeted about how the guy next to her in line at the DMV just farted and she said it smells like a mix of hot garbage and a yeast infection!!! How funny is that?!"

Rational Human: "I hate your face."
by thepoolboy October 05, 2009

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Someone who gets around
Alvin is a tweek, all he does is tweek with all the boys in the class
by BigPappa12345 September 12, 2011

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Something or someone that is stupid, dumb, or crazy.
"Stop being such a tweek !"

Person#1: I failed the history test.
Person#2: That was so easy, you tweek !
by kimbop October 03, 2009

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something that looks strange or is very cool
dude that shit is tweek!
by steakman1 February 10, 2007

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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To pinch or flick...

"I tweeked her nipple and she tweeked my clit with her tongue."
by Junebug December 14, 2005

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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When a girl plays with her Vag for pleasure or to tease men
My hoe girl friend was caught tweekin off at a party, all the guy seen her cookie
by Savoyo August 03, 2008

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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Can be a state of paranoia, Have to urge to hurt or kill somebody, Be Extremely mad (sometimes because of drugs or mental ilnesses)
Im going to Tweek on someone very shortly!

by Mike AKA TweeK February 06, 2007

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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