(n.) a magical spell in the Harry Potter video game series. This spell is never mentioned in any of the books by J.K. Rowling, but it is the universal spell to damage an enemy.
(v.) a sexual maneuver involving the male to spin the female in a 360 degree manner. the female is then completely disoriented, and intercourse continues.
(n.) person: "Use flippendo on that washing machine to get Bertie Botts beans!"
(v.) person: "I heard you flippendoed that bitch lastnight..."