マイボトル

noun

reusable personal bottle; water bottle; thermos

A personal reusable bottle, often used for water, tea, or other drinks. Commonly refers to insulated stainless steel bottles or plastic bottles brought from home to reduce waste. Wasei-eigo from 'my bottle'.

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

• 毎まい日にちマイボトルを持もって会かい社しゃに行いく。

  I bring my own bottle to work every day.

• このカフェはマイボトル持じ参さんで割わり引びきになる。

  This café gives a discount if you bring your own bottle.