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

Other days

hoodie

Hoodie Day
lumpy rug

Lumpy Rug Day
lisp

Lisp Day
frozen yogurt

Frozen Yogurt Day
nail polish

Nail Polish Day
cat girl

Cat Girl Day
stud

Stud Day
nae nae

Nae Nae Day
cuddle up

Cuddle Up Day
bubble bath

Bubble Bath Day