Oops, it doesn't look like 'joke or a disgrace depending on the day' is a national day..

Other days

brow

Brow Day
chocolate milkshake

Chocolate Milkshake Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
self care

Self Care Day
artists

Artists Day
mean girls

Mean Girls Day
blanket fort

Blanket Fort Day
hot chocolate

Hot Chocolate Day
aloxolt

Aloxolt Day
ormille

Ormille Day