Groups of people who eat only Kryptonite for Dinner.
Z:I'm a Kryptonian!

M:You eat Kypton for Dinner?

Z:....Huh?
by Xildra February 19, 2009
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When you’ve been awake for so long that at the next sunrise you suddenly feel rejuvenated.
If it were not for the Kryptonian Effect, I never would have made it through exams today.
by Schulist December 15, 2017
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Some Identifies as a Kryptonian because they Consider themselves to be a Great or "Super" Person regardless of any Gender category someone places upon them They are not a Cisgender however they can be any Gender they chose whenever they chose no matter if they are born of that Gender or chose to Identify as such The feel duty to help others and help better the world
by POLY4MORE February 13, 2023
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Slang/ - A term used primarily by black men amongst each other to describe black women.

The term derived from the movie Superman in that on earth Superman is seen as something special to be admired and he is loved by people. But back on Krypton he is seen as nothing special and just another Kryptonian.

So, because it is generally felt among many black men that black women see them as nothing special and black women are usually disrespectful to black men, talk down to them or attempt to emasculate them, etc. black men feel like they are regarded as Superman is on Krypton (ie. nothing special)

However, usually when a Black man dates outside his race or leaves the country they are treated like Superman is on earth with much love, respect and admiration.
Person 1 - "Hey, I heard Mark's wife was arguing with im in public again."

Person 2 - "Well, what else do you expect from a Kryptonian bitch?"
by EZRHINO March 24, 2017
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