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

Other days

law

Law Day
cat girl

Cat Girl Day
boba

Boba Day
self appreciation

Self Appreciation Day
unicorn

Unicorn Day
lisp

Lisp Day
nae nae

Nae Nae Day
pick me

Pick Me Day
self care

Self Care Day
coffee

Coffee Day