Quote Originally Posted by gRomoZeka
Quote Originally Posted by Crocodile
Quote Originally Posted by Оля
Поскреби себя, и найдешь татарина.
Nice!! Never heard that expression, but it sounds very sharp. I guess, you could probably make use of it since the person using the word "бусурман" is probably educated enough to get offended by the above.
Come on, guys! The phrase itself is clever and ironic and is a perfect answer, but I doubt you can offend anybody with it. It's famous and Russians use it about themselves freely, mostly in it's original form - "Поскреби русского - найдешь татарина" (Scrape off a Russian and you'll find a Tatar).

It's a quote from some French Russophobe treatise, which was so often mentioned by Russian XIX century writers, that it became almost a proverb. Many Russian humorists use it too.
I've always thought these words belonged to Turgenev.