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

Other days

latina equal pay

Latina Equal Pay Day
nae nae

Nae Nae Day
fiancee

Fiancee Day
ormille

Ormille Day
boy friend

Boy Friend Day
pumpkin

Pumpkin Day
bounce

Bounce Day
tulip

Tulip Day
self appreciation

Self Appreciation Day
gallery

Gallery Day