1) A white powder in 2001 that actually made the postal system slower than normal.

2) Anthrax (US band), an American thrash metal band.

3) Anthrax (UK band), a British anarcho-punk band.
Has my post arrived yet?

No I haven't had any since the Anthrax attacks.
by monkeynutstk February 05, 2009

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1. An 80s heavy/thrash metal band. Part of the Big 4 of Thrash, consisting of them, Metallica, Megadeth, and Slayer. Did some stuff with Public Enemy that many people liked, but i personally hated. Overall, Antrhax is a great thrash metal band that gives you a Fistful of Metal! (Anthrax fans should get that)

2. A white powder, deadly when inhaled. Often used by terrorists in envelopes so, when opened, the opener would be doomed.
1. Anthrax's song Madhouse is one of my favorite songs.

2. Oh, mails here! Let's see here...goddamit...
by Psylosis_Bassist September 24, 2007

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A WHITE POWDERY SUBSTANCE THAT ARRIVES IN THE MAIL. YOU OPEN IT AND DIE A HORRIBLE misserable death. painfull too.
dude check it out i just got a package in the mail and its got some baby powder in it.

dude that aint baby powder thats anthrax. you know that stuff them terrorists been sendin folks.
by who dat January 09, 2005

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1. a deadly biohazard that killes by destroying the lungs
2. a favorite toy of the Taliban
3. what hitmen use to get their money
4. in postal 2 what you put in a decapitated cow head
1. He was killed by anthrax
2. The taliban is at its anthrax-bombing again!
3. She was evidently killed by anthrax. Must have been a hitman.
4. Put in the anthrax and kick it off for a nice surprise!
by PlayDohMan May 04, 2004

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the dust on the wings of a moth, evil spores of death, when written on an envelope:a good way to get the FBI to visit you.
me:look, a moth.
JJ: AAAAGGGHHHH!!!!!!! ANTHRAX!!!! GET IT THE FUCK AWAY!!!!
by opie353 December 24, 2008

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The other white powder
Anthrax: the other white powder.
by the pits of hell July 31, 2003

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one of the most amazing metal bands ever, started in the early 80's, and one of the only one's that have stayed true to metal, each one of their albums have its own distinct sound that still manages to be diverse

the original lineup had joey belladonna as the lead singer but in the early 90's belladonna was replaced with john bush, producing some of the best anthrax albums to date, namely We've Come For You All which had Dimebag playing lead on two of the songs, one of the best and most underrated albums to come out in the past five years

john bush was recently replaced for joey belladonna as the lead singer and anthrax is doing a "reunion" tour although i hope that john bush soon rejoins the band again as the music produced during the john bush era was superior to and more mature than earlier anthrax albums
I hope Anthrax comes to their senses soon and gets rid of Belladonna for Bush.
by ash January 08, 2006

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