upper crust

Etymology
First known use as an idiom: 1836.

Noun

 * 1)  The social elite, the highest social class.
 * 2)  The topmost layer of a bread, pastry dish, or other item with a hardened coating.
 * 1)  The topmost layer of a bread, pastry dish, or other item with a hardened coating.
 * 1)  The topmost layer of a bread, pastry dish, or other item with a hardened coating.
 * 1)  The topmost layer of a bread, pastry dish, or other item with a hardened coating.