It is. They're what hold back
the URINE and feces.
The Big Bang Theory Season 8, Episode 18
...but you didn't have 10 seconds
to make one that said, "Urine cup"?
The Big Bang Theory Season 1, Episode 11
He was so busy figuring out
how many parts per million of URINE...
The Big Bang Theory Season 8, Episode 9
and he had to drink
URINE for...
Breaking Bad Season 2, Episode 9
How much URINE
do these suits hold?
The Big Bang Theory Season 5, Episode 24