Oops, it doesn't look like 'MallDc day' is a national day..

Other days

prosecco

Prosecco Day
kiss a ginger

Kiss A Ginger Day
nae nae

Nae Nae Day
law

Law Day
ponytail

Ponytail Day
unicorn

Unicorn Day
special education

Special Education Day
buddy

Buddy Day
stud

Stud Day
bounce

Bounce Day