
I was done with Latin by FIFTH grade.
The Big Bang Theory Season 3, Episode 2

but I spent most of FIFTH grade
with my head in a toilet.
The Big Bang Theory Season 7, Episode 2

You, uh, moving into the apartment
on the FIFTH floor?
The Big Bang Theory Season 6, Episode 8

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