Oops, it doesn't look like 'nasty ass aftertaste in your mouth diet soda day' is a national day..

Other days

special education

Special Education Day

hannah

Hannah Day

law

Law Day

Me Day

first love

First Love Day

pick me

Pick Me Day

eat what you want

Eat What You Want Day

promposal

Promposal Day

hot chocolate

Hot Chocolate Day

lost sock memorial

Lost Sock Memorial Day