Top definition
An interjection used to put extreme emphasis on a recently said joke, insult, or otherwise entertaining comment; an interjection used in great delight to one other's comment.
Jack: Bob, what's two plus two?
Jerk: You know what's so great about the internet? There's something called a "search engine" and you can find the answer to any question on it.
Bob: I'm not sure that the search engine works. I searched for "dumbass responses," and you're line didn't show up!
Jack and Bob: AIOO!!!!!!
by Steven January 06, 2004
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug