脱だつオタク

noun

ex-nerd; former otaku; someone who has given up geeky hobbies

Refers to a person who used to be deeply into anime, manga, games, or similar subcultures but has since left that lifestyle behind, often including changes in appearance and mannerisms.

See also: オタク

• 彼かれは脱だつオタクして、今いまはスーツを着きて働はたらいている。

  He gave up his otaku lifestyle and now works in a suit.

• 脱だつオタクを目め指ざして部屋へやのフィギュアを全ぜん部ぶ売うった。

  Aiming to become an ex-nerd, I sold all the figurines in my room.