(2)interjection: An exclamation showing great emotion, not specifying any particular meaning.
(3)noun: A surprisingly awesome kill in the video game Resistance: Fall of Man
(4)verb: execute a surprisingly awesome kill in the video game Resistance: Fall of Man
(2)"Dude! I just larked you from like across the map!!! Flipin' GNARKILL!!!"
(3)"I wish the game said GNARKILL every time i killed you."
(4)"Ima GNARKILL you..."
2.)When you are having sex with someone, right before you have an orgasm, you picture someone else in your head.
2.) I was havin sex with her and it was total gnar kill.