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

Other days

ormille

Ormille Day
gum

Gum Day
buddy

Buddy Day
eat what you want

Eat What You Want Day
ask out your crush

Ask Out Your Crush Day
kiss a brunette

Kiss A Brunette Day
hannah

Hannah Day
martini

Martini Day
offer

Offer Day
bonang

Bonang Day