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."
by I love the fab 5! January 31, 2004
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iono, do you think my LJ is too depressing?
by ryon January 30, 2004
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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."
by deez nuts February 6, 2004
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iono what the fuck your talking about
by Rubina February 5, 2004
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Short for "I don't know" used a lot on AIM by Pooners with nothing better to say
Me:hey, do you remember what our homework for tonight was?
Pooner:iono lol
Me:do you have any idea what i just said?
Pooner:haha fo sho i do homie lol
Me:Why don't you have a life?
Pooner:iono lol O_o
Me:i'm going to burn down your house.
Pooner:fo sho lol

*the next day*

Me:what's up, pooner?
Pooner:homie my house is on fir3 lol
Me:why don't you call 911?
Pooner:iono lol wats that lol
Me:i'm not telling. burn.
by Oscar_the_Muse January 29, 2004
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