3 definitions by josh@rootpoot

Top Definition
A methamphetamine user. Tweekers are known for their extreme paranoia, flagrant dishonesty, and lack of non-tweeker friends. A tweeker will steal your stuff and then help you look for it.
If you let those god damned tweekers come to your party, don't expect to have your stereo in the morning.
by josh@rootpoot November 25, 2003
Facial hair that all Unix experts are mysteriously compelled to grow. The length, bushiness, and unkemptness of the Unix beard are all directly proportional to the owner's expertise. Having a Unix beard is a great way to ensure that you never get laid.
Bob's a true Unix genius, just look at the size of his Unix beard!
by josh@rootpoot November 19, 2003
A species of Macaw known for its tendency to alight on one's erect penis. It is not clearly understood why these birds choose to land on penises.

Should a penisbird perch on your pecker, do not panic. The bird will most likely groom himself for a while and leave. Do not harm the penisbird, as they are an endangered species and must be protected.
There is naught more beautiful than a flock of penisbirds in flight, so long as you have your pants up.
by josh@rootpoot January 28, 2004

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