What do you call a person who speaks one language? American.

If you're an American who's studied languages, you've probably come across this joke, or some variant of it, before:

Q: What do you call a person who speaks three languages?
A: Trilingual.

Q: What do you call a person who speaks two languages?
A: Bilingual.

Q: What do you call a person who speaks one language?
A: American.

I've heard this joke applied to Brits as well.

In any case, I hope some Americans (and Brits) out there will join me in defeating this stereotype.