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

Other days

kale

Kale Day
ride the wind

Ride The Wind Day
unicorn

Unicorn Day
cuddle up

Cuddle Up Day
artists

Artists Day
brow

Brow Day
first love

First Love Day
mean girls

Mean Girls Day
healing

Healing Day
ruby

Ruby Day