A Catholic girl like you
wearing a big cross like that...
The Big Bang Theory Season 3, Episode 5
I'm having sex with a Catholic
schoolgirl tonight.
The Big Bang Theory Season 7, Episode 21
They kind of whup that out of you
in Catholic school.
The Big Bang Theory Season 4, Episode 22
Brought a Catholic girl home
to your mother?
The Big Bang Theory Season 4, Episode 23
...and I quote, she'd like to see
"the little Catholic girl first."
The Big Bang Theory Season 4, Episode 23