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

Other days

youth

Youth Day
bonang

Bonang Day
kiss a ginger

Kiss A Ginger Day
mean girls

Mean Girls Day
bounce

Bounce Day
boyfriend

Boyfriend Day
coffee

Coffee Day
brow

Brow Day
get funky

Get Funky Day
lisp

Lisp Day