Can be noun or verb. A form of violent, aggressive dancing or "slamming" during punk shows that stays within the confines of an open, circular area in the middle of the floor. Any of the following may occur within the circle pit including:
1. dancing or skanking that looks like running in a counter clock wise fashion
2. random thrashing motion with elbows swinging and legs kicking out in a "running" man style fashion
3. usually occurring at the front of the floor is the pogo which is hopping up and down and bumping into other participants
4. the circle pit can also differ in different types of shows such as at a hardcore show (windmilling, picking up change, kickboxing) or a metal show (the largest participants running around and seeing how can push whom the hardest) or a ska show(skanking).
Dude, I'm so sore from all those punks slamming dancing in the circle pit last night at the Circle Jerks show!