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

Other days

Girl Friend Day

Prosecco Day

Blanket Fort Day

Artists Day

Tell Ur Crush You Like Them Day

Lost Sock Memorial Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Lumpy Rug Day

Nae Nae Day

Carpenters Day