Oops, it doesn't look like 'Hate On Nush day' is a national day..

Other days

gum

Gum Day
bow tie

Bow Tie Day
ask out your crush

Ask Out Your Crush Day
law

Law Day
ruby

Ruby Day
hoodie

Hoodie Day
prosecco

Prosecco Day
carpenters

Carpenters Day
youth

Youth Day
cuddle up

Cuddle Up Day