電でん波ぱ系けい

noun

someone who is delusional or out of touch with reality; a person who seems to be receiving strange signals

Slang term used to describe someone who acts as if they are receiving radio waves, i.e., they have bizarre ideas, talk to themselves, or seem disconnected from reality. Often used in otaku or internet culture.

• あの人ひとは電でん波ぱ系けいで、いつも独ひとり言ごとを言いっている。

  That person is denpa-kei and always talks to themselves.

• ネットでは電でん波ぱ系けいの書かき込こみがよく見みられる。

  You often see denpa-kei posts online.