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

Other days

youth

Youth Day
nae nae

Nae Nae Day
bubble bath

Bubble Bath Day
bow tie

Bow Tie Day
offer

Offer Day
gum

Gum Day
blanket fort

Blanket Fort Day
ormille

Ormille Day
bounce

Bounce Day
law

Law Day