also: だつオタク
noun
ex-nerd; person who has given up otaku hobbies
Colloquial term for someone who has stopped engaging in stereotypical otaku interests, fashion, or mannerisms. Often used self-deprecatingly or about others.
See also: 脱オタク
彼は脱オタして、今はスーツで働いている。
He gave up his otaku lifestyle and now works in a suit.
脱オタしたけど、まだアニメはこっそり見てる。
I've quit being an otaku, but I still secretly watch anime.
Similar meaning, but 卒オタ often implies a more positive 'graduation' from otaku hobbies, while 脱オタ can feel more like a deliberate break.
Compound of 脱 (datsu, 'escape from' or 'quit') and オタ (ota, abbreviation of オタク 'otaku'). The exact origin is uncertain, but it follows the pattern of words like 脱サラ (datsusara, 'leaving salaryman life').