Traditional
Still common
Definition
A school day when students wear casual clothes instead of uniform.
Example Sentence
"Don't forget it's mufti day tomorrow, no uniform needed."
Where "Mufti Day" Comes From
"Mufti" originally referred to civilian clothes worn by military personnel off-duty, borrowed from Arabic via British military slang.
Australian schools adopted the term for casual, non-uniform days, often tied to fundraising or special events.
How Aussies Actually Use It
It's used almost exclusively in a school context, usually announced ahead of a themed dress-up or fundraiser day.
Students often pay a gold coin donation to take part.
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