Oops, it doesn't look like 'name your poison name your poison day' is a national day..

Other days

promposal

Promposal Day
comfy

Comfy Day
bubble bath

Bubble Bath Day
blanket fort

Blanket Fort Day
bounce

Bounce Day
nail polish

Nail Polish Day
martini

Martini Day
hoodie

Hoodie Day
tell a fairytale

Tell A Fairytale Day
raise awerness of zeus

Raise Awerness Of Zeus Day