Top Definition
Masturbating when you have liquids on your genitals that is from someone having an orgasm.
"Dude, I jerked off and then used the jizz as lube for a second round!"
"You were Cumrubbing?!"
#cumrub #cumrubbin' #cumrubbed #masturbation #jacking off #beating off #jerking off
by Revolutionman November 02, 2008
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