Top definition
a moron, Jack ass ,door knob, fool
Dude, you put the key in the IGNITION Jack Knob
by LSULSUJOE October 25, 2006
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2
douche lord, jack off, fat fuck, shit eater, someone who is an overall rude ass
He called you a 9? What a jack knob!
by madsandtins January 02, 2015
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3
The act of a male ejaculating on another males face.
Timmy and Pumba jackknobed on each other.
by Ricky P. January 29, 2008
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