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

Other days

prosecco

Prosecco Day
self appreciation

Self Appreciation Day
nae nae

Nae Nae Day
martini

Martini Day
coffee

Coffee Day
stress awareness

Stress Awareness Day
believe

Believe Day
gum

Gum Day
boba

Boba Day
bow tie

Bow Tie Day