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

Other days

carpenters

Carpenters Day
ride the wind

Ride The Wind Day
boyfriend

Boyfriend Day
nae nae

Nae Nae Day
lumpy rug

Lumpy Rug Day
law

Law Day
slime

Slime Day
frozen yogurt

Frozen Yogurt Day
cursing

Cursing Day
camera

Camera Day