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

Other days

pick me

Pick Me Day
latina equal pay

Latina Equal Pay Day
one

One Day
gum

Gum Day
hiv awareness

Hiv Awareness Day
bow tie

Bow Tie Day
coffee

Coffee Day
martini

Martini Day
bubble bath

Bubble Bath Day
blanket fort

Blanket Fort Day