The act of killing someone in any First Person Shooter game with a heavy machine gun that has massive recoil without using any support equipment or any actions to prevent it. (i.e MG class in Day of Defeat)

the thing that you don’t have when you’re phones percentage is over 20

Completely full area or to a lesser degree object, usually filled to the brim, literally overflowing, or ready to burst. The obvious reference is to John Rambos heavily muscled frame in the film of the same name.