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n. a penis trick, while in a hot tub descretely remove your penis from your swimwear, then slowly raise your body until the tip of the penis has breached the surface to the surprise of the other hot tub residence.
Dude you are so gay! i can't believe you just did the parascope without warning me first.

Oh my god, we were in the hot tub with my parents and my boyfriend actually did the parascope!
by MB DUB February 21, 2006