Oops, it doesn't look like 'this dick in your mouth day' is a national day..

Other days

comfy

Comfy Day
bubble bath

Bubble Bath Day
chocolate milkshake

Chocolate Milkshake Day
me

Me Day
one

One Day
pick me

Pick Me Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
youth

Youth Day
emoji

Emoji Day
prescription drug take back

Prescription Drug Take Back Day