Commonly used in rap battles, it means to take what somebody said against you and to use it against them.

What happens when, on the phone or instant messenger, someone needs to go (or fakes needing to go to end the conversation) and says "bye" (or a variant, or an IM shortening of it like 'cya').
The other participent says "bye"--or something-- The original person says "bye"/whatever again, and the other one responds. This can go on for minutes or longer until someone--or their parent--puts their foot down.

same as "too much information" TMI

Pawned is something old and/or bald people say by mistake instead of pwned when trying to sound young and hip.

Airliner lingo for someone with children.

Someone who is constantly calling the police for the most ignorant or tedious reasons. Typically calls when no emergency exists.

A retort that means, "What you've just said is plainly not true, although I certainly wish it were."