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

Other days

brow

Brow Day
nail polish

Nail Polish Day
boba

Boba Day
camera

Camera Day
pick me

Pick Me Day
slime

Slime Day
cuddle up

Cuddle Up Day
lumpy rug

Lumpy Rug Day
kiss a brunette

Kiss A Brunette Day
one

One Day