when doosh bags come around in the middle of the night thinking they are cool. They knock on your door and hide so when the person answers the door to see no one there they can laugh.
The act of one person excessively sending multiple text messages to another, all saying the exact same thing (mostly 'dingbat', or variations such as 'dingb't' or 'you got dingbatted')
Presumably only utilized by people on unlimited text contracts, and sent to those without such means to respond, therefore humiliating the recipient. The fun in greatly increased when the target is in class or if the text message reads something offensive or embarassing.
OH NO, Ivo just DINGBATTED me! I've got a hundred texts and they all say "DINGBAT