noun
dirty mind; lecherous thoughts
Colloquial term for a mind preoccupied with sexual or lewd thoughts.
彼はスケベ心を隠そうともしない。
He doesn't even try to hide his dirty mind.
スケベ心を起こして女性に近づく。
He approaches women with lecherous intentions.
noun
conniving mind; self-interested thinking
Colloquial, less common than the sexual sense; refers to a calculating, self-serving mindset.
彼の親切はスケベ心から出たものだ。
His kindness came from a conniving mind.
Compound of スケベ (lewd, lecherous) and 心 (heart, mind). The origin of スケベ is uncertain, but it is a colloquial term widely used in modern Japanese.