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

Other days

me

Me Day
self appreciation

Self Appreciation Day
pick me

Pick Me Day
bow tie

Bow Tie Day
raise awerness of zeus

Raise Awerness Of Zeus Day
reading

Reading Day
kale

Kale Day
mean girls

Mean Girls Day
boy friend

Boy Friend Day
ruby

Ruby Day