No bloody violence (possibly some groinal pain.)
Can be done pretty much any time, anywhere with anyone.
Simply sit on your hands and knees with your stomach facing the sky/roof. Only your hands/knees can touch the ground.
Use your knees/legs/feet to attack the other person. The aim is to get their ass on the floor. The first person with their ass on the floor loses.
- "Mine now."
- "Alright, crab fight you for it!"
Crab Fighting ensues...
Winner gets the chair.