Oops, it doesn't look like 'no bra sugar cookie day' is a national day..

Other days

pick me

Pick Me Day
lumpy rug

Lumpy Rug Day
unicorn

Unicorn Day
nae nae

Nae Nae Day
ponytail

Ponytail Day
hoodie

Hoodie Day
brow

Brow Day
cat girl

Cat Girl Day
lisp

Lisp Day
slime

Slime Day