Booty Kill
When you're dancing to some really good music and the song changes and you can't dance to it anymore. Booty kill. When you're dancing and some guy tries to grind up on you and you turn around and he's ugly. Bam. Booty Kill. When a guy tries to pick up on you and he messes up the pick up line. Once again, Booty Kill. There are endless opportunities to use this phrase.
Damn, this music blows. Total booty kill.