1 definition by Blackadder ll

bio

Used in many MMORPG's to indicate that you will be away to go to the restroom.

Dude1 "Hey dude, sorry, but I need to take a bio break because it feels as if I have a turtle-head poking out."
Dude2 "Dude, please, just say your going bio. I don't want a picture dude."

by Blackadder ll January 16, 2005