JMdict: 2270850

天に唾する 【てんにつばする】

  1. [exp,vs-s] to harm oneself as a result of trying to harm someone else; to cut off one's nose to spite one's face; to spit at the sky
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
Heavens, Sky, Imperial テン あまつ, あめ, あま- 1
Saliva, Sputum ダ, タ つば, つばき