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

Other days

offer

Offer Day
kale

Kale Day
kiss a brunette

Kiss A Brunette Day
reading

Reading Day
martini

Martini Day
fiancee

Fiancee Day
hot chocolate

Hot Chocolate Day
stud

Stud Day
nae nae

Nae Nae Day
believe

Believe Day