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

Other days

lost sock memorial

Lost Sock Memorial Day
coffee

Coffee Day
polyamory

Polyamory Day
slime

Slime Day
self care

Self Care Day
nae nae

Nae Nae Day
bonang

Bonang Day
gallery

Gallery Day
cuddle up

Cuddle Up Day
first love

First Love Day