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

Other days

boy friend

Boy Friend Day
hoodie

Hoodie Day
eat what you want

Eat What You Want Day
gum

Gum Day
cursing

Cursing Day
comfy

Comfy Day
nae nae

Nae Nae Day
nail polish

Nail Polish Day
promposal

Promposal Day
girl friend

Girl Friend Day