Oops, it doesn't look like 'fuck all yall day' is a national day..

Other days

one

One Day
nae nae

Nae Nae Day
nail polish

Nail Polish Day
get funky

Get Funky Day
pick me

Pick Me Day
law

Law Day
bounce

Bounce Day
ponytail

Ponytail Day
eat what you want

Eat What You Want Day
unicorn

Unicorn Day