When a man rotates his pelvic area rapidly to make his penis whirl around like the blades of a helicopter.
Girl: "Why are you late"
Guy: "I was peniscoptering in the shower"
Girl: "Oh. Well that explains it."
Guy: "I was peniscoptering in the shower"
Girl: "Oh. Well that explains it."
by Earl Sweatshirt91 November 09, 2013