Country Dictionary

B.I.O

Biologically Intense Odor

An odor secreted by an organism that smells so bad it might get you light headed,might be armpits,feet,sweat,etc..

His feet smelt so bad that I got dizzy while just passing him,he's got some B.I.O

B.I.O.

Usually when people, mostly girls, are in the mist of fight. And one of the girls is like "B.I.O. (Bring It On)!" Don't piss off that girl right there! She will lash out.

Stacy: "B.I.O. BITCH! Don't mess with me!"
Jean: "HA! Try me!"