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

Other days

tell ur crush you like them

Tell Ur Crush You Like Them Day
youth

Youth Day
ruby

Ruby Day
polyamory

Polyamory Day
bounce

Bounce Day
nae nae

Nae Nae Day
china

China Day
coffee

Coffee Day
comfy

Comfy Day
buddy

Buddy Day