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

Other days

ormille

Ormille Day
latina equal pay

Latina Equal Pay Day
cuddle up

Cuddle Up Day
bow tie

Bow Tie Day
tulip

Tulip Day
prosecco

Prosecco Day
brow

Brow Day
lisp

Lisp Day
lash

Lash Day
polyamory

Polyamory Day