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

Other days

bow tie

Bow Tie Day
cat girl

Cat Girl Day
youth

Youth Day
eat what you want

Eat What You Want Day
offer

Offer Day
nae nae

Nae Nae Day
ormille

Ormille Day
self care

Self Care Day
pampering

Pampering Day
singles

Singles Day