slow burn

idiomatic slang

(idiomatic) A gradually increasing feeling of anger or frustration. / (fiction, fandom slang) A romantic story (especially a work of fan fiction) in which the central relationship develops slowly.

Japanese Meaning

じわじわと高まる怒りや苛立ち（慣用句として） / （フィクション、ファンダム用語として）中心の恋愛関係がゆっくりと進展するロマンティックな物語

What is this buttons?

Her disappointment with the company turned into a slow burn that affected every decision she made.

Google Translation / DeepL Translation

彼女の会社に対する失望は徐々に募る怒りとなり、彼女のあらゆる決断に影響を与えた。

Details

Sense（1）

(idiomatic) A gradually increasing feeling of anger or frustration.

In the ninth inning of a game with the Pittsburgh Pirates, Johnny Temple, Cincinnati Redleg second baseman, let a hot grounder sizzle through his legs, looked up to see the Scoreboard flash "error" and began a slow burn.

Google Translation / DeepL Translation