Oops, it doesn't look like 'Nasty Ass Aftertaste In Your Mouth Diet Soda day' is a national day..

Other days

Prosecco Day

Martini Day

Appreciate Yaself A Lil Extra Day

Ask Out Your Crush Day

Unicorn Day

Nae Nae Day

Lumpy Rug Day

Pumpkin Day

Artists Day

Slime Day