Oops, it doesn't look like 'stop makin up day' is a national day..

Other days

lisp

Lisp Day
coffee

Coffee Day
hannah

Hannah Day
buddy

Buddy Day
cat girl

Cat Girl Day
ride the wind

Ride The Wind Day
kiss a ginger

Kiss A Ginger Day
youth

Youth Day
boba

Boba Day
comfy

Comfy Day