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

Other days

singles

Singles Day
my little pony

My Little Pony Day
eat what you want

Eat What You Want Day
bow tie

Bow Tie Day
china

China Day
boy friend

Boy Friend Day
gum

Gum Day
nae nae

Nae Nae Day
girl friend

Girl Friend Day
prosecco

Prosecco Day