button day

== English == === Noun === button day (plural button days) (Australia) A day on which money is raised for a group or cause by selling buttons for people to wear. ==== See also ==== flag day === Further reading === “button day”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present. “button day” (US) / “button day” (UK) in Macmillan English Dictionary.