
I study the brain, the organ responsible
for Beethoven's "Fifth Symphony."
The Big Bang Theory Season 4, Episode 24

you wouldn't have been FIFTH
on my list.
The Big Bang Theory Season 12, Episode 7

It's more likely that you will spend
your careers teaching FIFTH graders...
The Big Bang Theory Season 2, Episode 6

"The FIFTH annual East Rutherford,
New Jersey, Gay, Lesbian, Bisexual...
The Big Bang Theory Season 2, Episode 18

...to be picked for a game in FIFTH grade,
I'm sure you do suck.
The Big Bang Theory Season 8, Episode 3