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

Other days

fiancee

Fiancee Day
boy friend

Boy Friend Day
youth

Youth Day
lumpy rug

Lumpy Rug Day
my little pony

My Little Pony Day
pick me

Pick Me Day
bonang

Bonang Day
martini

Martini Day
eat what you want

Eat What You Want Day
promposal

Promposal Day