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jack knob 

douche lord, jack off, fat fuck, shit eater, someone who is an overall rude ass
He called you a 9? What a jack knob!
jack knob by madsandtins January 2, 2015

jackknob 

The act of a male ejaculating on another males face.
Timmy and Pumba jackknobed on each other.
jackknob by Ricky P. January 29, 2008