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

Other days

tulip

Tulip Day
one

One Day
cuddle up

Cuddle Up Day
nae nae

Nae Nae Day
hot chocolate

Hot Chocolate Day
cat girl

Cat Girl Day
get funky

Get Funky Day
brow

Brow Day
lash

Lash Day
cursing

Cursing Day