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
I bring my own bottle to work every day.
This café gives a discount if you bring your own bottle.
Variant with a middle dot; less common but seen in some contexts.
Wasei-eigo from English 'my bottle'. The term gained popularity with environmental movements encouraging people to bring their own reusable bottles.