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A very specific term originating from new zealand. A kelsey flagg is a giant parade float featuring the worlds largest frisbee, 3 gorgeous women, a stove (for the women), and a fully equiped sound system. And a master bathroom.
Dude! My friend Micah just gave his friend a Kelsey flagg!

THats crazy! lets go play some disc!!
by Micah Sunset May 26, 2010
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