Someone who is acting like a "jerkface" but slightly less annoying. The action of being a jerk on puropse, but in a joking sort of manner. One who thinks he is being cool but is really just being rude and obnoxious.
another way of referring the the most elite fighting force on the planet, the USMC. Derived from the word jarhead. fantastic four, steak, and a small amount of peas.