1. slam dancing - Noun
2. slam dancing - Verb
a form of dancing in which dancers slam into one another; normally performed to punk rock
Source: WordNetCharlie interrupts impatiently, "Pain is where it's at for punks. Mutilation, self-hatred, slam dancing. For these kids today, ugly is beautiful. That's their way of saying what a lousy world we're giving them. No more rain forests. Toxic waste. You know the drill." John Updike