ío 

She´s very beautiful and kind. Has one of the most uniques names in the whole world, that makes of her a very special girl. She has the name of the most beautiful moon of the planet jupiter and also the name of one the maids of Hera, in the greek mythology. Ío, you are cool, XOXO.

Look at Ío, she´s called like a moon.
I would love to call my daughter Ío.

ío by besosdetuperezosa November 22, 2021

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.

Io 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

.io by Deltablue March 24, 2017

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.

IO 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>

IO by Big G Funk March 17, 2009

.io 

the host of all cancer

doctor: you have cancer
patient: oh no
doctor: to be specific,you have cancer.io
patient: *fucking dies*

.io by gearworks June 17, 2018

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."

IO by aussieslang101 November 12, 2009