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

Other days

self care

Self Care Day
hannah

Hannah Day
pick me

Pick Me Day
ask out your crush

Ask Out Your Crush Day
bow tie

Bow Tie Day
mean girls

Mean Girls Day
pampering

Pampering Day
nae nae

Nae Nae Day
kiss a ginger

Kiss A Ginger Day
china

China Day