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

Other days

coffee

Coffee Day
blanket fort

Blanket Fort Day
special education

Special Education Day
tulip

Tulip Day
kiss a brunette

Kiss A Brunette Day
boba

Boba Day
ormille

Ormille Day
slime

Slime Day
artists

Artists Day
carpenters

Carpenters Day