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

Other days

first love

First Love Day
lisp

Lisp Day
one

One Day
lumpy rug

Lumpy Rug Day
pick me

Pick Me Day
bow tie

Bow Tie Day
boba

Boba Day
pampering

Pampering Day
donate your hair

Donate Your Hair Day
camera

Camera Day