Oops, it doesn't look like 'slide in my dms day' is a national day..

Other days

buddy

Buddy Day
youth

Youth Day
cursing

Cursing Day
boyfriend

Boyfriend Day
unicorn

Unicorn Day
tulip

Tulip Day
latina equal pay

Latina Equal Pay Day
gum

Gum Day
kiss a ginger

Kiss A Ginger Day
boy friend

Boy Friend Day