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

Other days

youth

Youth Day
lumpy rug

Lumpy Rug Day
kiss a ginger

Kiss A Ginger Day
one

One Day
reading

Reading Day
offer

Offer Day
bow tie

Bow Tie Day
healing

Healing Day
nail polish

Nail Polish Day
cat girl

Cat Girl Day