An orgasm related to Orange Juice (OJ) in some way. Either having an orgasm as the cause of seeing/smelling/drinking Orange Juice, or having an Orange Juice substance leave your body in the event of an orgasm.
Boy1: Dude, i love pulpy Orange Juice
Boy2: OMG! I feel an OJasm coming on!
by Heidi Vicious November 25, 2007

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