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The act of putting your penis into an unsuspecting and sleeping victim's hand. While being careful not to wake the person, you proceed to thrust your hips until climax. The next morning the person will awake with crusted semen in/on their hand not know where it may have come from.
My god Sandra, after I passed out last night, I think Steve may have come into my room and hand jacked me.
by Stumpie2012 June 12, 2009
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