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

Other days

unicorn

Unicorn Day
one

One Day
nae nae

Nae Nae Day
promposal

Promposal Day
prosecco

Prosecco Day
bow tie

Bow Tie Day
tulip

Tulip Day
lash

Lash Day
cuddle up

Cuddle Up Day
bonang

Bonang Day