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

Other days

boba

Boba Day
lisp

Lisp Day
china

China Day
frozen yogurt

Frozen Yogurt Day
mean girls

Mean Girls Day
offer

Offer Day
kiss a ginger

Kiss A Ginger Day
bonang

Bonang Day
pumpkin

Pumpkin Day
nae nae

Nae Nae Day