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1. bio
June 19, 2008 Urban Word of the Day
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 Jan 15, 2005 add a video
2. bio
biological waste
brb gone for bio ( a piss)
by Gitfire May 10, 2003 add a video
3. bio
Also known as a profile, BIO is short for biography and is a term used to describe a brief description of a person.
My Age is on my bio page.
by Jak Dude Apr 30, 2005 add a video
4. Bio
An annoying way to say you're going to the bathroom, often used in WoW but has been used less frequently over the years (thankfully)
Gaydude123: Brb bio
Gayguy321: Dude just say you have to take a shit
5. bio
Abbreviation of biodiesel.
My Benz runs on bio.
6. bio
A polite way of saying that you're going to the bath room.
Stands for Be In the "Office".
Guy one: "Hey man I just ate a ton of Mexican food, BIO break."
Guy two: "Dude, nasty..."
7. BIO
BIO is an acronym of the phrase BITCH ITS ON!

it can also be substituted for bring it on but is slightly less effective.
girl1: i bet guys like me more than they like you!

girl2: BIO!
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