The biohazard symbol was created to identify hazardous substances back in the 60's but is now part of popular culture. As a tattoo it was popularized by the band Biohazard.
It has been adopted by many in the gay and HIV+ communities to identify people with HIV/AIDS to their potential sexual partners.
A tattoo of the biohazard symbol. Has nothing to do with sexuality, AIDS, or anything else the 13 year old writer of the other definition said.
People get it for any of the following reasons:
1. It looks cool.
2. They are DFLers for the band Biohazard.
3. It goes well into blackwork sleeves due to it's shape.
4. Because they want to.
It is a warning others the person with the tattoo is intense and lives,works,loves, and parties hard. My brother has a biohazard tat and that descibes him....beware if you see one it could be a hazard.
Garrett has a biohazard tattoo and has been known to date up to five at once and a couple were married. (near misses with hubands coming home early..............)