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

Other days

brow

Brow Day
buddy

Buddy Day
coffee

Coffee Day
bonang

Bonang Day
lash

Lash Day
bounce

Bounce Day
polyamory

Polyamory Day
tulip

Tulip Day
hoodie

Hoodie Day
one

One Day