Oh, and POTTY is okay?
The Big Bang Theory Season 4, Episode 3
...not the president
of the Potty Mouth Club.
The Big Bang Theory Season 6, Episode 9
...to measure your brain waves
while POTTY training.
The Big Bang Theory Season 2, Episode 15
I didn't know they gave Nobel Prizes
for making boom-boom in the POTTY.
The Big Bang Theory Season 6, Episode 3
On the POTTY? What are you, 5?
The Big Bang Theory Season 4, Episode 3