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

Other days

first love

First Love Day
believe

Believe Day
nae nae

Nae Nae Day
buddy

Buddy Day
ask out your crush

Ask Out Your Crush Day
bonang

Bonang Day
pick me

Pick Me Day
nail polish

Nail Polish Day
bow tie

Bow Tie Day
stud

Stud Day