There-There's chapters
about POTTY training,
The Big Bang Theory Season 7, Episode 4
What do you do in the POTTY,
wee-wee?
The Big Bang Theory Season 4, Episode 3
...not the president
of the Potty Mouth Club.
The Big Bang Theory Season 6, Episode 9
Oh, and POTTY is okay?
The Big Bang Theory Season 4, Episode 3
I didn't know they gave Nobel Prizes
for making boom-boom in the POTTY.
The Big Bang Theory Season 6, Episode 3