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

Other days

hiv awareness

Hiv Awareness Day
hoodie

Hoodie Day
lash

Lash Day
fiancee

Fiancee Day
girl friend

Girl Friend Day
my little pony

My Little Pony Day
ponytail

Ponytail Day
kale

Kale Day
kiss a brunette

Kiss A Brunette Day
coffee

Coffee Day