Top Definition
The homeworld of Superman. It exploded creating tons of Kryptonite.
Krypton had a Red Sun.
by The Kryptonian April 06, 2005
1 more definition
the male version of a Poptart. a jock that only cares about the next baseball or football game and is a jerk.
John Smith is such a Krypton
by double decker pecker wrecker October 11, 2011

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