Top Definition
A person who says their diet starts tomorrow so they can eat whatever they want and not feel bad. Or a person who procrastinates their diet.
Mike:I made this awesome cake! Too bad you can't have any because you said you started your diet yesterday. Kelly:It's alright, I'm starting my diet tomorrow. So give me all the cake! Mike:Your such a Dietcastinater
by I11egal Ninja October 12, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×