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kryptonite

To expose to, or attack with, kryptonite.

ˈkɹɪptənaɪtCurrent156 viewsLast reviewed Jun 29, 2026+ Add a definition
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3 definitions
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Seen in the wild
9 citations · last seen May 2026

Seen in the wild

Definitions

#2·Apr 27, 2026

(slang) Crack cocaine.

So while recording or sampling a Charlie Manson track makes for shock rock kudos aplenty, a devotion to Hubbard is kryptonite for credibility.
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#3·Apr 27, 2026

(figuratively) The one weakness of something or someone that is otherwise invulnerable.

See it in action
  • “Isn’t Jesus more the God of nails? Or are they his Kryptonite?”

  • “There is a gap in the DC world for academic superheroes, struggling against the kryptonite of underfunding, fighting the kulutur wars.”

  • “God yes I'm not ageist but ancient boomers constantly waffling at each other and creeping about on doctor's orders are my kryptonite.”

The terrific seven-grain bread here is the kryptonite of restaurant reviewers: two mini-loaves and you are incapacitated.
Origin: From a fictional radioactive element, kryptonite, that has a detrimental effect on the otherwise invulnerable character Superman. Apparently formed as. Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).
Heard in the wild
  • “Should made the object out of whatever acts like kryptonite for dismal donnie’s bs superpower.”

    — Bluesky· May 2026
  • “Isn’t Jesus more the God of nails? Or are they his Kryptonite?”

    — Bluesky· May 2026
  • “There is a gap in the DC world for academic superheroes, struggling against the kryptonite of underfunding, fighting the kulutur wars.”

    — Bluesky· May 2026
  • “God yes I'm not ageist but ancient boomers constantly waffling at each other and creeping about on doctor's orders are my kryptonite.”

    — Bluesky· May 2026
  • “(for full clarity, I'm not saying I was *good* at it - I have a face for radio and voice for Teletext - but I could at least read one and half listen to the other. "Blue Peter" style craft segments are my Kryptonite though.)”

    — Bluesky· May 2026
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Show 1 more dictionary-style sense (imported)
#1·Apr 27, 2026

To expose to, or attack with, kryptonite.

Heard in the wild
  • “Now playing on 91.3 Ayclt FM HD2: Kryptonite by 3 Doors Down! Tune in now: https://radio.913aycltfm.com/listen/91.3_ayclt_fm_hd2/bluesky”

    — Bluesky· May 2026
  • “Kryptonite New York standard: youtu.be/2_9x9iiJ_Z0?...”

    — Bluesky· May 2026
  • “reflective material my kryptonite i hope i'm not too late! #ocsky #furry #anthro #art #oc #goldenweek #bunny”

    — Bluesky· May 2026
  • “discrete opt is my kryptonite, but why is this hard by ILP 🤔 the constraint matrix looks unimodular (so, the polyhedron should be integral -> solving the LP relaxation would be sufficient)?”

    — Bluesky· May 2026
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