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

Other days

boy friend

Boy Friend Day
ride the wind

Ride The Wind Day
kale

Kale Day
offer

Offer Day
tell a fairytale

Tell A Fairytale Day
lash

Lash Day
lisp

Lisp Day
one

One Day
unicorn

Unicorn Day
bow tie

Bow Tie Day