Zipper Heads Edit Meaning

1. A tactic in Half Life which involves hiding whilst two people fight, then jumping out when they're at 10% health and killing both o..

1. A makeshift instrument that is constructed out of parts taken from a real one. Man this bass is a piece of trash. The neck is warped, t..

1. the phenomenon in fitness where, in doing crunches, situps, etc., one has to do a rapidly increasing number of repetitions in order to g..