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蛙化 kaeruka
Caught the ick, instantly.
What does kaeruka mean?
You liked them, then they did one tiny cringey thing and the feelings evaporated. Instant and merciless.
Example
歩くの遅くて蛙化しちゃった。
They walked so slowly that my crush just evaporated.
Vibe
Who you can say this to, and how it lands.
Friends only Casual. Natural with friends, out of place at work or with strangers.
Culture note
The name comes from The Frog Prince. Originally it meant being repulsed the moment your crush likes you back, but Gen Z reshaped it into getting the ick over small details.
The story behind kaeruka
The name comes from the fairy tale in which a frog turns into a prince, and it deliberately runs the story backwards. It first appeared as a term in Japanese psychology writing in the 2000s, describing a sad pattern: someone loses all attraction the moment their feelings are returned.
Around 2023 it went mainstream through short video and shifted meaning almost entirely. The modern version is about tiny disappointments rather than reciprocity: how he ordered, how she walked through a ticket gate, one badly chosen word. Older speakers who know the original sense find the new one baffling, which is the usual fate of any word that goes viral.
Get kaeruka in your pocket
蛙化 is one of 308 words in YABAI, a Japanese culture snack for Android. Every word comes with its meaning, an example sentence, a vibe check and a story like the one above — in 13 languages, read aloud by your device. Paid app: no ads, no sign-up, no subscription.
