The go-to maneuver when you're deep in a crowd and trying to leave. It is the most logical exit strategy. As you dance past them, bystanders will respect you for being a fucking boss. If you remain hype on your way out, people will ignore the fact that you're lame for leaving that party, concert, rave, etc. Always a 'W'.
Own that exit dance, and getcho ass out of there.
i.e. also works to get to the front at a rave
"I need some water! Lets get out of this crowd!"
* holds intense eye contact *
"Listen mate, this crowd is thick. Looks like an exit dance is our only way out."