
It is. They're what hold back
the urine and FECES.
The Big Bang Theory Season 8, Episode 18

eating FECES, living in FECES
The Big Bang Theory Season 7, Episode 1

and making little
balls out of FECES.
The Big Bang Theory Season 7, Episode 1

the more FECES they fling.
The Big Bang Theory Season 5, Episode 13

eating FECES, living in FECES
The Big Bang Theory Season 7, Episode 1