Gnarfle the Garthok 

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!

Gnarfle the Garthok by Brian McManus June 21, 2006

gnarfle the garthak 

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.

gnarfle the garthak by Santi August 4, 2005