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

Other days

cuddle up

Cuddle Up Day
gum

Gum Day
get funky

Get Funky Day
brow

Brow Day
boy friend

Boy Friend Day
gallery

Gallery Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
slime

Slime Day
first love

First Love Day
one

One Day