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

Other days

mean girls

Mean Girls Day
offer

Offer Day
cuddle up

Cuddle Up Day
bow tie

Bow Tie Day
pumpkin

Pumpkin Day
kale

Kale Day
nail polish

Nail Polish Day
believe

Believe Day
frozen yogurt

Frozen Yogurt Day
nae nae

Nae Nae Day