pummelfest

1. A brief instance when a person aggressively strikes at individuals in a group of people (or continually strikes the same person)
2. To have multiple sessions of aggressive, borderline violent sex.

1. Once Freddy found out I stole his yellow crayon, I got my ass handed to me. It was quite a pummelfest until he tuckered out.

2. On Valentine's Day, I could hear George and Sally-May having a pummelfest next door. It went on for hours and I'm almost certain they broke their bed.