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

Other days

ponytail

Ponytail Day
blanket fort

Blanket Fort Day
brow

Brow Day
tulip

Tulip Day
bonang

Bonang Day
ride the wind

Ride The Wind Day
book

Book Day
fiancee

Fiancee Day
ask out your crush

Ask Out Your Crush Day
boy friend

Boy Friend Day