Oops, it doesn't look like 'get over it barbie day' is a national day..

Other days

girl friend

Girl Friend Day
singles

Singles Day
gum

Gum Day
boy friend

Boy Friend Day
slime

Slime Day
book

Book Day
martini

Martini Day
brow

Brow Day
ormille

Ormille Day
mean girls

Mean Girls Day