JMdict: 1509360

癖になる 【くせになる】

  1. [exp,v5r] to become a habit; to be addictive; to be moreish
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
癖 Mannerism, Habit, Vice, Trait, Fault, Kink ヘキ くせ, くせ.に