...extracted from the URINE of cows.
The Big Bang Theory Season 4, Episode 22
the URINE should just bead up
and roll right off.
The Big Bang Theory Season 5, Episode 21
It took me a gallon of URINE
to make that water.
The Big Bang Theory Season 5, Episode 15
No, that measuring cup
has always been for URINE.
The Big Bang Theory Season 1, Episode 11
Howard Hughes saved his URINE
in milk bottles.
The Big Bang Theory Season 10, Episode 23