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

Other days

fiancee

Fiancee Day
buddy

Buddy Day
boy friend

Boy Friend Day
self care

Self Care Day
stud

Stud Day
law

Law Day
martini

Martini Day
kiss a ginger

Kiss A Ginger Day
tulip

Tulip Day
prosecco

Prosecco Day