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

Bio by GM8 October 4, 2010

bio 

when someone is that sweet and kind that you want them to be your bestie, they're a bio. they would do anything for a person, and help them through the tough times. they would do anything for you if you took the time to get to know them. they would be the most selfless person you know. they would be there for you forever.

you're my bio

bio by The person who makes stuff August 5, 2020

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..."

bio by Capt Anarchy May 5, 2009

BIO 

Beauty Inside and Out

From Tyra Banks show: beauty comes from inside and out! BIO!

BIO by cng413 May 25, 2010

bio 

BIO , acronym of "Bring It On"
also known as the best warring kingdom in a mmorpg browser game called "Utopia".

GhettoPlayer1: hey man you know BIO?
GhettoPlayer2: OMFG OFC!1 they are teh so l33t they won honor crown on age 34 <3 bio

bio by Blake Gifford December 14, 2008

bio 

One of the coolest spells to ever grace the Final Fantasy series.

Bio is a poison element spell.
Fire 3:Fire::Blizzard:Ice::Bio:Poison

bio by Moggle888 August 26, 2003

bio 

Abbreviation of biodiesel.

My Benz runs on bio.

bio by jahmiller October 21, 2010