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

Other days

youth

Youth Day
lumpy rug

Lumpy Rug Day
bonang

Bonang Day
nail polish

Nail Polish Day
kale

Kale Day
healing

Healing Day
blanket fort

Blanket Fort Day
nae nae

Nae Nae Day
bubble bath

Bubble Bath Day
brow

Brow Day