Something or someone who makes you weak, even if you are a very strong person
I'm a very strong person but you make me weak, you are my kryptonite.
by SydneySilver January 11, 2016
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Related to the Superman movies: Superman's weakness.The only thing that can hurt the man of steel.

My definition:

A man/woman that calls someone their Kryptonite means that they are their weakness. Someone or something they have to stay away from because they want it even though it's not good for them or will hurt them.

Someone you want but can't have can be called your Kryptonite.
-You like Jane?

-Yeah dude but I gotta stay away from her because she's got a boyfriend. She's my Kryptonite.

-I'm allergic to shrimp.It's my Kryptonite.

-You're like Kryptonite to me. I have to stay away from you.
by GuestStar December 09, 2009
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Intellectually powerful enough and attractive enough to seduce the strongest willed Playas, Pimps, Macks,Daddies,Hubbies, and Champions.
Man she's got that Kryptonite!

Aww man I swear this Man has got some Kryptonite!
by Buttafly G. September 29, 2010
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A song by the band 3 Doors Down. It was released in 2000, and is an Alternative/Indie song.
If I go crazy, then will you still call me Superman?
If I'm alive and well, will you be there and holding my hand?
I'll keep you by my side with my superhuman might
Kryptonite
by Master Of Nations August 03, 2020
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A female that you can help but go back to even though she's bad for you
Yo son why you keep goin back to her

Can't help it man she's my kryptonite she got I pull on me
by Young beez May 12, 2009
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a lethal mix of viagra and cocaine used by men during devious sexual acts for the purpose of trying to escape a mid-life crisis post tramatic limp syndrome and usually end up dying, shaming their families for life.
did you hear what happened to John this weekend?
he died in a motel 6 from using kryptonite on a water buffalo .
by Mickey Darling August 03, 2009
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A strong love and desire for something or someone. They are something or someone you are unable to stay away from.
Bongo is l’s kryptonite. No matter what happens they can’t and won’t be without eachother.
by Lea!Rose! January 01, 2020
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