A Catholic girl like you
wearing a big cross like that...
The Big Bang Theory Season 3, Episode 5
Brought a Catholic girl home
to your mother?
The Big Bang Theory Season 4, Episode 23
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