Diet slut

Someone, of female gender who goes on many diet attempts. She explores each diet for 24 hours but can never stick with it! Jumps from diet to diet without regard for each diets feelings.

Diet slut- "I'm not drinking water anymore."
Me- "why?"
Diet slut- "my new diet has me only drinking green tea."
Me- "yesterday you were on an all carb diet."
Diet slut- " i ditched it."
Me- "psh diet slut!"