エロオヤジ

noun

dirty old man; old lecher; old perv

Colloquial, derogatory term for a middle-aged or older man who is lecherous or sexually inappropriate.

• 電でん車しゃの中なかでエロオヤジに痴ち漢かんされた。

  I was groped by a dirty old man on the train.

• あのエロオヤジ、また若わかい子こにちょっかい出だしてるよ。

  That old perv is hitting on young girls again.