mosh

To dance by intentionally jumping into and colliding with other, similarly behaving dancers, and performing other wild, aggressive, or spastic movements.

From 9 in the morning (when It Dies Today played the lot) until 9 at night (when Ozzy Osbourne led Black Sabbath on the main stage), hardy fans cheered and moshed and staggered through a stifling but often exciting day.

To intentionally jump into and collide with (another dancer) at a concert.

The moshing style of dancing.

We had a great mosh at the gig.