Oops, it doesn't look like 'send nudes kiss my ass day' is a national day..

Other days

brow

Brow Day
hannah

Hannah Day
ruby

Ruby Day
youth

Youth Day
slime

Slime Day
cuddle up

Cuddle Up Day
kale

Kale Day
believe

Believe Day
aloxolt

Aloxolt Day
pumpkin

Pumpkin Day