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

Other days

hannah

Hannah Day
bow tie

Bow Tie Day
one

One Day
brow

Brow Day
azonto is acceptable

Azonto Is Acceptable Day
nae nae

Nae Nae Day
comfy

Comfy Day
mean girls

Mean Girls Day
nail polish

Nail Polish Day
book

Book Day