Oops, it doesn't look like 'martini kissing flipflop day' is a national day..

Other days

lisp

Lisp Day
offer

Offer Day
me

Me Day
hoodie

Hoodie Day
boy friend

Boy Friend Day
bounce

Bounce Day
ask out your crush

Ask Out Your Crush Day
cat girl

Cat Girl Day
emoji

Emoji Day
bow tie

Bow Tie Day