Oops, it doesn't look like 'get on my fuckin nerves day' is a national day..

Other days

brow

Brow Day
one

One Day
me

Me Day
buddy

Buddy Day
cursing

Cursing Day
stud

Stud Day
bow tie

Bow Tie Day
ruby

Ruby Day
kiss a brunette

Kiss A Brunette Day
tulip

Tulip Day