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

Other days

buddy

Buddy Day
lash

Lash Day
girl friend

Girl Friend Day
gum

Gum Day
ride the wind

Ride The Wind Day
martini

Martini Day
believe

Believe Day
lumpy rug

Lumpy Rug Day
pick me

Pick Me Day
prosecco

Prosecco Day