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

Other days

book

Book Day
comfy

Comfy Day
ruby

Ruby Day
hiv awareness

Hiv Awareness Day
bow tie

Bow Tie Day
eat what you want

Eat What You Want Day
fiancee

Fiancee Day
first love

First Love Day
carpenters

Carpenters Day
offer

Offer Day