Internet surfers who act lame, foolish, or just childish. They are also known to spam, flame, misspell words in ways you never knew words could be misspelled, write in extreme shorthand or l33tspeak, accuse other users of hacking without cause, TeamKill (in onnline games) and other online idiocies. The person being refered to as an AOL Kid may or may not actually use AOL, and may or may not be a minor. Also used as a noun as a place for such people to go.
Go back to AOL Kids you idiot.