Iono 

Iono means "to not know" It's a shortening for "I don't know"

Mum: Why haven't you cleaned your room?!
Child: iono

Police Officer: Why did you feel the urge to steal £3000 from the city bank?
Kid: iono

Iono by Steph November 16, 2003

iono 

I don't know. Silly blog word.

iono, do you think my LJ is too depressing?

iono by ryon January 29, 2004

iono 

slang for "I don't know" also used when talking online, like "lol" "brb" and "omg"

"Jim: Do you like the muffins?
Tim: Iono, they taste funny."

iono by I love the fab 5! January 31, 2004

iono 

short for "I don't Know" on MSN

self explanitory

iono by The Supreme Me February 7, 2004

iono 

iono - i dont know

iono what the fuck your talking about

iono by Rubina February 4, 2004

iono 

This is a lazy way of saying the phrase "I don't know," possible when your mouth is full.

"What are you doing tonight?"

"Iono bro, hit me up later."

iono by deez nuts February 5, 2004

iono 

i don't know

Iono what they were talkin bout

iono by danielle February 6, 2004