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

Other days

brow

Brow Day
fiancee

Fiancee Day
healing

Healing Day
my little pony

My Little Pony Day
pampering

Pampering Day
cuddle up

Cuddle Up Day
unicorn

Unicorn Day
ruby

Ruby Day
kale

Kale Day
boy friend

Boy Friend Day