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

Other days

self appreciation

Self Appreciation Day
reading

Reading Day
self care

Self Care Day
hannah

Hannah Day
fiancee

Fiancee Day
one

One Day
kiss a brunette

Kiss A Brunette Day
nae nae

Nae Nae Day
gallery

Gallery Day
ruby

Ruby Day