ワンコイン

noun-modifying (irregular)

one-coin; costing a single coin

Typically refers to something that can be paid for with a single 500-yen coin, sometimes a 100-yen coin. Used prenominally in phrases like ワンコインランチ.

• あの店みせのワンコインランチはお得とくだ。

  That shop's one-coin lunch is a great deal.

• ワンコインで楽たのしめるイベントを探さがしている。

  I'm looking for an event I can enjoy for just one coin.