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

Other days

buddy

Buddy Day
boy friend

Boy Friend Day
emoji

Emoji Day
brow

Brow Day
get funky

Get Funky Day
youth

Youth Day
kiss a ginger

Kiss A Ginger Day
bow tie

Bow Tie Day
stress awareness

Stress Awareness Day
bubble bath

Bubble Bath Day