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An antiquated, schoolyard term denoting the grasping/throttling of male genitals in a rapid, yet even, measure; so to resemble the beating heart of a rabbit. Believed to have originated in the late 1980's or early 1990's, and may in fact be regional to the greater northeast, though this is admittedly speculative.
James: "Hey dude, you ever see a rabbit's heart?"

Mike: (pukes)
by Dexter1111 May 17, 2009