butter is an excellent lubricant
for your RECTAL exam.
The Big Bang Theory Season 5, Episode 17
that'll show you how
to perform your own RECTAL exam.
The Big Bang Theory Season 5, Episode 17
...before the FDA finds out
they may cause RECTAL bleeding.
The Big Bang Theory Season 8, Episode 1
and give away free RECTAL exams.
The Big Bang Theory Season 7, Episode 3