Sometimes said by a marching band when puting the instrument to their mouths.
*drum drum drumma drumma drum drum drum drum drrrruuuuummm* "RUP" *DAAA DAAAA DAA DA DA DAAAAAAAAAA*
by master stghm April 04, 2004
When you make someone look at something, that is not really there. If the person looks You rub your hand on the back of the person's neck in a vary fast motion.
Person 1: "Your sock is untied..........Thats a rup."

Person 2: "Ow."
by Jose Cuervoooo May 26, 2009

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