一いち見げんさんお断ことわり

expression

no first-time customers; regulars only

A policy phrase used by some traditional restaurants, bars, or establishments that refuse service to customers without an introduction or prior relationship. Often seen on signs or stated as a rule.

• その料りょう亭ていは一いち見げんさんお断ことわりなので、常じょう連れんの紹しょう介かいが必ひつ要ようだ。

  That traditional restaurant has a 'no first-time customers' policy, so you need an introduction from a regular.