キークラブ

noun

members-only nightclub

A nightclub that requires membership or a key for this word; a wasei-eigo term derived from English 'key club'.

wasei-eigo (Japanese-coined English), from key club

• あのビルの地ち下かには会かい員いん制せいのキークラブがあるらしい。

  I heard there's a members-only key club in the basement of that building.