Everything and Nothing. Good and Bad.
Used to describe anything that can't be described otherwise.
Used in the movie Dosage V while Dave Graham is climbing a boulder problem.

A popular dance among Enemy Territory players where someone shoots and kills another player, and dances on his corpse with his knife out. The idea is to emulate the disco dancing movements of John Travolta's character from the movie Saturday Night Fever, while simultaneously teabagging the victim.

This dance was named after its creator, who's gaming name is ShikaDance.