A symbol representing a biological hazard is around, take extreme precautions to this sign, area's may be contaminated...
My tattoo is a biohazard symbol.
by Blicka January 01, 2006
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a person who is clearly ill and doesn't have enough sense or concern for those around them to stay home from work and out of the general public. Also applys to someone who injures them-self and instead of cleaning the wound and covering it walks around with blood dripping as if it is a badge of honor. No one wants to come in contact with your bodily fluids!!!
Man, you are a frickin' biohazard! Go home before you get us all sick!
by #1 germaphobe March 19, 2009
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Resident Evil in Japan. While the name in the U.S. is Resident Evil, it's also known as Biohazard in Japan.
Dude yesterday I got Biohazard 4 for my Gamecube... man it kicks so much ass...
by RTJ1987 January 27, 2006
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A decent rap metal band. Sounds like a mix between PanterA and Beastie Boys.
by [mike] May 30, 2005
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A slutty female who has a lot of sex with a lot of different men without the use of a condom. She is presumed to have a lot of STD's. She uses her body as a biological weapon by spreading diseases through sexual intercourse.
Dang that girl is a biohazard! Don't sleep with her or you might catch chlamydia.
by Bubblz April 03, 2014
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The sickest guitarist in the world, from Blind Deaf.
Yo, did you hear Blind Deaf last night? Yeah, Biohazard fucking wailed!!!
by jklava October 06, 2007
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A Counter Strike Zombie Mod. Games go like this:

1.A few seconds after the game starts, a random player will turn into a zombie.
2.Every other person who is hit by the zombie will become a zombie.
3.Continues until only zombies are left, or zombies are all killed by humans.

Humans often gather in places that are hard to reach, or build human towers to get on top of large boxes.
Zombies are granted extra health and greater speed.
We were playing Biohazard, and everybody was in the pipe on cs_assault when suddenly one guy turned into a zombie and infected everyone else.
by Red Skelly July 10, 2008
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