マイカップ

noun

reusable cup; personal cup

Wasei-eigo from English 'my cup'. Refers to a personal, reusable cup brought by an individual, often for environmental reasons or at events.

wasei-eigo (Japanese-coined English), from my cup

• カフェにマイカップを持もっていくと割わり引びきになる。

  If you bring your own cup to the café, you get a discount.

• 最さい近きん、マイカップ派はが増ふえている。

  Recently, the number of people who use their own cups has been increasing.