the testicles of a lamb.

Applied to various objects resembling a target or shield. Cookery. The neck and breast of lamb as a joint; the fore-quarter without the shoulder.

in the U.K. and U.S., lamb's offal, esp. testicles; in Australia and New Zealand, lamb's liver.

(in plural) the testicles of a lamb, calf, or other animal, cooked and eaten as a delicacy; = mountain oyster n. at mountain, n. adj.compounds 2a.

A breast of lamb, esp. when cut deep as in Scotland, Ireland, and parts of northern England; also, flank of beef.