iono 

"i dunno"

"what do you wanna do tonight?"
"iono."

iono by elaine February 1, 2004

iono 

Mean's "I Don't Know"

1: What're you doin'?
2: iono

1: Who're you?
2: iono

iono by stef January 5, 2004

iono 

Shorthand for "I don't know".

"Did you bone grandma?", "Iono".

iono by Josh January 30, 2004

iono 

basically means i don't know

Iono where the food at

iono by Chinkiimama February 7, 2004

iono 

i don't know

what you saying today?
i ono

iono by asdasd February 7, 2004

iono 

A shortening of "I don't know"

Person 1: What you doing later?
Person 2: iono

iono by steph November 11, 2003

iono 

An online adaptation of the phrase 'I don't know.' Shortened to 'I dono' which became 'iono'

iono wtf ur talking bout

iono by michelle February 5, 2004