A mad individual who can cause pain to himself and not give a damn. the spawn of god and satan.
Will act as below:
Runs around fields on cold night, in only his underwear, smoking and screaming "I rape chickens". sleep talks about foursoms, chickens, wanting sausages, and aaarrghffejwfbisduf!!
To Tweek is to be overly excited about something, or keep talking about it or just plain out being anoyying about that topic.
Jay: Norman! Stop tweeking over them damn books man!
Norman: But man they're so good like in chapter 3- "Blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah"
Jay: DUDE STOP TWEEKIN!
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 !
Noun. A boisterous dork, dweeb or nincompoop. An annoyingly loud twit.
Shut the fuck up you stupid tweek.