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

Other days

Embarrass Your Best Friend Day

Kiss A Brunette Day

China Day

Aloxolt Day

Nae Nae Day

Self Care Day

Hiv Awareness Day

Gum Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Eat What You Want Day