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

Other days

unicorn

Unicorn Day
self care

Self Care Day
fiancee

Fiancee Day
lash

Lash Day
nae nae

Nae Nae Day
hoodie

Hoodie Day
get funky

Get Funky Day
gum

Gum Day
gallery

Gallery Day
stud

Stud Day