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

Other days

fiancee

Fiancee Day
youth

Youth Day
hannah

Hannah Day
law

Law Day
nae nae

Nae Nae Day
donate your hair

Donate Your Hair Day
blanket fort

Blanket Fort Day
frozen yogurt

Frozen Yogurt Day
boy friend

Boy Friend Day
unicorn

Unicorn Day