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

Other days

polyamory

Polyamory Day
boba

Boba Day
bow tie

Bow Tie Day
bubble bath

Bubble Bath Day
donate your hair

Donate Your Hair Day
healing

Healing Day
blanket fort

Blanket Fort Day
comfy

Comfy Day
martini

Martini Day
kale

Kale Day