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

Other days

nae nae

Nae Nae Day
stud

Stud Day
bonang

Bonang Day
tulip

Tulip Day
donate your hair

Donate Your Hair Day
bounce

Bounce Day
coffee

Coffee Day
nail polish

Nail Polish Day
mean girls

Mean Girls Day
boba

Boba Day