...to be asking another man's GIRLFRIEND
to his experiment...
The Big Bang Theory Season 3, Episode 10
And his GIRLFRIEND, Amy.
The Big Bang Theory Season 9, Episode 24
Amy, if you want to be my GIRLFRIEND
again, I really want to be your boyfriend.
The Big Bang Theory Season 9, Episode 10
She's not my, please forgive me
for doing this, "GIRLFRIEND."
The Big Bang Theory Season 4, Episode 5
Dude, why don't you just invoke
your GIRLFRIEND pact with Wolowitz?
The Big Bang Theory Season 4, Episode 5