Season 4, Episode 17: "The Outing"

-Know what? -My parents?

They don't know what's going on.

You're that girl in the coffee shop that was eavesdropping on us.

I knew you looked familiar.

-I better get going. -There's been a big misunderstanding.

We did that for your benefit. We knew you were eavesdropping.

That's why my friend said all that. It was on purpose. We're not gay.

Not that there's anything wrong with that.

Jerry and George's panicked reflexive disclaimer after an NYU reporter mistakenly outs them as a couple — deployed over and over throughout the episode.