Oops, it doesn't look like 'messed up moves day' is a national day..

Other days

one

One Day
donate your hair

Donate Your Hair Day
hiv awareness

Hiv Awareness Day
slime

Slime Day
ponytail

Ponytail Day
bow tie

Bow Tie Day
cat girl

Cat Girl Day
lisp

Lisp Day
bonang

Bonang Day
china

China Day