Oops, it doesn't look like 'lottery a fucker the day' is a national day..

Other days

gum

Gum Day
hoodie

Hoodie Day
artists

Artists Day
ask out your crush

Ask Out Your Crush Day
lumpy rug

Lumpy Rug Day
buddy

Buddy Day
aloxolt

Aloxolt Day
bow tie

Bow Tie Day
china

China Day
promposal

Promposal Day