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A word invented by actor Neil Patrick Harris during his appearance on The Late Late Show with Craig Ferguson in 2008.

adj.- (of a person or action) being particularly effeminate and flamboyant in a manner which might be likened to that of a swish or stereotypical gay man.
Neil Patrick Harris: You are just swishtastic tonight! You have been snapping and jumping around.
Craig Ferguson: I am swishtastic every night.
by TheGarishGopher July 24, 2009
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2
someone/something that is awesome, the best of the best, amazing.
Man that ninja was pretty swishtastic.
by logan pancoast February 18, 2008
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