A social and economic class lying above the lower middle class and below the upper class.

plural of upper crust

Used other than figuratively or idiomatically: see upper, crust. The topmost layer of a bread, pastry dish, or other item with a hardened coating.

Alternative form of upper-crust

The raising of a geographical area as a consequence of plate tectonics.

To persuade a customer to buy more items, or more expensive items, than they had intended.

The act of making such a sale.

To take action on the basis of information received or deduced.

An innocent person (usually a female) crushed by life's adversities.

(idiomatic) The quality of being resolute and showing self-restraint, stereotypically associated with the British; especially as keep a stiff upper lip.