Oops, it doesn't look like 'egg somebody shit day' is a national day..

Other days

stud

Stud Day
fiancee

Fiancee Day
boyfriend

Boyfriend Day
first love

First Love Day
get funky

Get Funky Day
mean girls

Mean Girls Day
bonang

Bonang Day
gum

Gum Day
frozen yogurt

Frozen Yogurt Day
bounce

Bounce Day