...extracted from the URINE of cows.
The Big Bang Theory Season 4, Episode 22
No, that measuring cup
has always been for URINE.
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
What you're buying here
are the ingredients for very expensive URINE.
The Big Bang Theory Season 1, Episode 4
passed out in a puddle
of his own URINE.
The Big Bang Theory Season 5, Episode 7