和英辞書

専門バカ

noun

someone who is only knowledgeable within the field in which they specialize; a fachidiot

彼は専門バカで、自分の分野以外のことには全く興味がない。

He is a specialist fool, with no interest in anything outside his field.

意味（1）

someone who is only knowledgeable within the field in which they specialize; a fachidiot

https://books.google.com/books?id=4u2f1J-nPfkC&pg=PT162&dq=専門バカ

https://books.google.com/books?id=4u2f1J-nPfkC&pg=PT162&dq=専門バカ だけど、実際日本(じっさいにほん)のエンジニアは今不遇(いまふぐう)にあって、会社(かいしゃ)に入(はい)ったら専門(せんもん)バカとして扱(あつか)われるし、給料(きゅうりょう)も安(やす)いし、女(おんな)の子(こ)にももてないよね。

Dakedo, jissai Nihon no enjinia wa ima fugū ni atte, kaisha ni haittara senmon baka toshite atsukawareru shi, kyūryō mo yasui shi, onna no ko ni mo motenai yo ne.But engineers are not well-treated in Japan nowadays. They are treated like specialist fools once they enter companies, given cheap salaries, and are unpopular with girls.