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

Other days

book

Book Day
ponytail

Ponytail Day
eat what you want

Eat What You Want Day
gallery

Gallery Day
bow tie

Bow Tie Day
unicorn

Unicorn Day
lash

Lash Day
ormille

Ormille Day
comfy

Comfy Day
nae nae

Nae Nae Day