bio hazard

to fart on ones hand then smear it on someone elses face, preferable the nose and mouth

I gave johnny a killer bio hazard.

by Jack Manzo September 2, 2003

Bio-hazard

Someone who will give you their entire life story at the slightest provocation.

"She had me cornered for an hour, telling me about her childhood; she's such a bio-hazard."

by Pages2Type February 4, 2010