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

Other days

offer

Offer Day
believe

Believe Day
kiss a ginger

Kiss A Ginger Day
lumpy rug

Lumpy Rug Day
gum

Gum Day
tulip

Tulip Day
blanket fort

Blanket Fort Day
eat what you want

Eat What You Want Day
stud

Stud Day
coffee

Coffee Day