Sorry. I'll take a DIET Yoo-hoo
if you have it.
The Big Bang Theory Season 3, Episode 1
I know, it's not
on my wedding DIET.
The Big Bang Theory Season 5, Episode 16
that she decided
to go on a DIET...
The Big Bang Theory Season 7, Episode 12
Diet Coke.
The Big Bang Theory Season 1, Episode 13
...I need to change my DIET.
The Big Bang Theory Season 4, Episode 2