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

Other days

lumpy rug

Lumpy Rug Day
get funky

Get Funky Day
singles

Singles Day
lisp

Lisp Day
bonang

Bonang Day
reading

Reading Day
self care

Self Care Day
cuddle up

Cuddle Up Day
cursing

Cursing Day
believe

Believe Day