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

Other days

nae nae

Nae Nae Day
ask out your crush

Ask Out Your Crush Day
blanket fort

Blanket Fort Day
martini

Martini Day
boyfriend

Boyfriend Day
slime

Slime Day
china

China Day
hoodie

Hoodie Day
my little pony

My Little Pony Day
cursing

Cursing Day