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

Other days

comfy

Comfy Day
coffee

Coffee Day
self care

Self Care Day
get funky

Get Funky Day
unicorn

Unicorn Day
bubble bath

Bubble Bath Day
slime

Slime Day
buddy

Buddy Day
my little pony

My Little Pony Day
youth

Youth Day