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

Other days

get funky

Get Funky Day
kiss a ginger

Kiss A Ginger Day
special education

Special Education Day
gum

Gum Day
raise awerness of zeus

Raise Awerness Of Zeus Day
brow

Brow Day
lisp

Lisp Day
lash

Lash Day
law

Law Day
cuddle up

Cuddle Up Day