It is. They're what hold back
the urine and FECES.
The Big Bang Theory Season 8, Episode 18
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
eating FECES, living in FECES
The Big Bang Theory Season 7, Episode 1
That's of little comfort to a nation
attempting to scrape burning FECES...
The Big Bang Theory Season 4, Episode 7