Kryptonite

(redirected from Green kryptonite)
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Drug slang A regional term for crack cocaine
Vox populi A fictional element from the Superman saga which is one of the few things that weakens the Man of Steel. Prolonged exposure to Kryptonite is capable of killing Superman.
References in periodicals archive ?
In that movie, Superman's arch enemy Lex Luthor steals some green kryptonite, with which to weaken and destroy him, from a display case at the Metropolis Museum.
And nobody seemed to get too close to the rare samples of green Kryptonite.
The special-edition desktop and notebook both feature an immersive Superman desktop theme that transforms users' icon, wallpaper, and media player designs by incorporating distinctive touches from the Superman universe, such as green Kryptonite and Clark Kent's glasses.