A form of punishment on the planet Remulak. The offending conehead is placed in a Colosseum-like arena containing thousands of spectators. When the garthok is released the prisoner must battle it using only a hook and short staff. If the garthok is successfully gnarfled, the prisoner regains his honor. If he fails the conehead is killed and eaten by the garthok.
You have betrayed your cone heritage; therefore, you will . . . gnarfle the garthok!
by Brian McManus June 21, 2006
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To have sex with an exceedingly unattractive, usually fat person, especially whilst inebriated.
Derived from the movie Coneheads wherein Beldar must fight a hideous, greasy tusk-beast.
Damn she was fugly, but my man was mackin her friend so I had to gnarfle the garthak.
by Santi July 12, 2005
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When a girl gives you really good head!
Man she can really gnarfle my garthok!
She gave me a good gnarflin!
Hey come over here and gnarfle on it!
by Wompus kitty November 16, 2020
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