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

Other days

mean girls

Mean Girls Day
carpenters

Carpenters Day
healing

Healing Day
nae nae

Nae Nae Day
ormille

Ormille Day
girl friend

Girl Friend Day
self appreciation

Self Appreciation Day
bow tie

Bow Tie Day
lisp

Lisp Day
ruby

Ruby Day