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

Other days

boy friend

Boy Friend Day
fiancee

Fiancee Day
lisp

Lisp Day
coffee

Coffee Day
cuddle up

Cuddle Up Day
ormille

Ormille Day
self appreciation

Self Appreciation Day
stud

Stud Day
tulip

Tulip Day
one

One Day