Oops, it doesn't look like 'gang up on kirk day' is a national day..

Other days

unicorn

Unicorn Day
ask out your crush

Ask Out Your Crush Day
bounce

Bounce Day
buddy

Buddy Day
kale

Kale Day
blanket fort

Blanket Fort Day
pick me

Pick Me Day
ponytail

Ponytail Day
polyamory

Polyamory Day
stud

Stud Day