What does Creme de la Creme mean in English?

Literally translated: cream of the cream. It is a French colloquialism stemming from milk. Cream rises to the top in unpasturized milk and is considered the best part of the milk. The top layer of cream is skimmed off first, leaving some cream in the milk. The rest of the cream is considered a little lower quality, since the cream will have other parts of the milk in it. That top layer is the cream of the cream, or creme de la creme -- the best of the best. cream, the best of the best!