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One who masterbaits while imagining another person, animal, thing, or pretty much anything that gets them off.
"Wow that chick is so hot i might have to imagibate to her fine ass later"
by Hortinstein June 04, 2003
The act of masturbating using only your imagination.
Joe couldn't find any good porn so he decided to imagibate.
by demonic324 July 25, 2014