Definitions by SURFTIME9

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!"

B.I.O. by SURFTIME9 December 12, 2011