Oops, it doesn't look like 'mind yo damn business for a day' is a national day..

Other days

brow

Brow Day
youth

Youth Day
boy friend

Boy Friend Day
singles

Singles Day
stud

Stud Day
cuddle up

Cuddle Up Day
gum

Gum Day
slime

Slime Day
china

China Day
donate your hair

Donate Your Hair Day