...that it is possible
for the matter above this STOOL...
The Big Bang Theory Season 2, Episode 19
...her vomit and STOOL
became filled with blood...
The Big Bang Theory Season 6, Episode 18
Like a milking STOOL,
my case rests on three legs.
The Big Bang Theory Season 3, Episode 16
a bar STOOL dipped in cholera?
The Big Bang Theory Season 5, Episode 2
Now I can quit checking my STOOL.
The Big Bang Theory Season 8, Episode 2