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

Other days

boy friend

Boy Friend Day
healing

Healing Day
youth

Youth Day
nae nae

Nae Nae Day
first love

First Love Day
bounce

Bounce Day
cat girl

Cat Girl Day
stud

Stud Day
polyamory

Polyamory Day
gum

Gum Day