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A term created from the Cobra Starship song Kiss My Sass. It is quite often used when there are adults present and one cannot tell the other to Kiss my ass. It comes in handy and is commonly used with thirteen year old girls who just might be a tad poseur ish
13y o girl: Lyk ommgg I totallyyy stole Hannahss boyfriendd!

Hannah: Kiss my Sass!!
by CassieXCore April 25, 2010
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