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

Other days

healing

Healing Day
ruby

Ruby Day
blanket fort

Blanket Fort Day
ponytail

Ponytail Day
slime

Slime Day
kiss a brunette

Kiss A Brunette Day
china

China Day
boy friend

Boy Friend Day
promposal

Promposal Day
first love

First Love Day