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

Other days

bonang

Bonang Day
pick me

Pick Me Day
self care

Self Care Day
cat girl

Cat Girl Day
eat what you want

Eat What You Want Day
tulip

Tulip Day
stud

Stud Day
artists

Artists Day
boy friend

Boy Friend Day
promposal

Promposal Day