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

Other days

cat girl

Cat Girl Day
first love

First Love Day
kale

Kale Day
boyfriend

Boyfriend Day
my little pony

My Little Pony Day
offer

Offer Day
lash

Lash Day
ride the wind

Ride The Wind Day
fiancee

Fiancee Day
cursing

Cursing Day