Oops, it doesn't look like 'Fucking Tell The Truth day' is a national day..

Other days

first love

First Love Day
law

Law Day
buddy

Buddy Day
bounce

Bounce Day
brow

Brow Day
kale

Kale Day
slime

Slime Day
lash

Lash Day
eat what you want

Eat What You Want Day
cuddle up

Cuddle Up Day