Oops, it doesn't look like 'selfie eat pizza with no pants on day' is a national day..

Other days

Fiancee Day

Ponytail Day

Azonto Is Acceptable Day

Nail Polish Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Kale Day

Frozen Yogurt Day

Comfy Day

Kiss A Brunette Day

Ask Out Your Crush Day