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

Other days

gum

Gum Day
china

China Day
mean girls

Mean Girls Day
stud

Stud Day
ruby

Ruby Day
hot chocolate

Hot Chocolate Day
boba

Boba Day
kiss a brunette

Kiss A Brunette Day
boy friend

Boy Friend Day
tulip

Tulip Day