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

Other days

brow

Brow Day
kiss a brunette

Kiss A Brunette Day
polyamory

Polyamory Day
hot chocolate

Hot Chocolate Day
lumpy rug

Lumpy Rug Day
lash

Lash Day
first love

First Love Day
hannah

Hannah Day
one

One Day
bounce

Bounce Day