fun day

== English == === Alternative forms === funday, fun-day === Etymology === From fun +‎ day. === Noun === fun day (plural fun days) A day in which one or multiple, usually social, amusing activities are held; a single-day event, especially one that is family-friendly. A day that brings one enjoyment, happiness or pleasure; a day that is fun. ==== Usage notes ==== Both senses are frequently used in conjunction with Sunday and Monday, because of the rhyme.