IO

Acronym for Irrelevant One

Kimmie nicknamed herself IO after falling for Ben's crap for time one hundred. I hate to agree but he sure doesn't seem to care much about her feelings.

by Shyantha December 22, 2006

IO

Acronym (Slang) for "I'm Out" when conversing using the Microsoft Communicator Software. v. The act of hastily departing an online collaboration session with little notice to others participating in the dialogue.

I am no longer part of this conversation as it is digressing rapidly; it will inevitably over-step that invisible moral line in the sand that uniquely distinguishes the employed from the homeless.

<message>
"Dude, I wanna dip it in the new workstudy sittin in the corner desk..."
<reply>
"IO"
<end of converstion>

by Big G Funk March 17, 2009

IO

IO

Instant Orgasm, used by girls to describe something they find attractive and or hot.

"Wow! that sports car is cool." "Yeah! its a total IO."

by aussieslang101 November 12, 2009

IO

Shorthand for "it's Over"

Daniel: "Your Craigslist buyer backed out..."
Marianne: "IO."

by mabmoney June 11, 2015

IO

A zombie queen with an irresistable personality.

"IO can't brain today. She has the dumb."

by Carie Ann March 30, 2008

Io

One of the four Galilean moons of Jupiter, so called because of being discovered by Galileo. The most volcanically active object in the Solar system.

Hey, look in my telescope: you can see Io, Europa, Ganymede, and Callisto.

by antinous February 2, 2004

.io

.io is the thing after a series of online games that is very popular

Agar.io lets play. Slither.io lets play that. Nope splix.io. and others

by Deltablue March 24, 2017