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

Other days

stress awareness

Stress Awareness Day
bubble bath

Bubble Bath Day
latina equal pay

Latina Equal Pay Day
first love

First Love Day
kale

Kale Day
offer

Offer Day
tulip

Tulip Day
brow

Brow Day
lumpy rug

Lumpy Rug Day
bow tie

Bow Tie Day