dewlap

Etymology

First element of unknown meaning and origin (compare dewclaw) + Old English læppa (“a loose hanging piece”) (compare jellop, jowlop).

noun

1. The pendulous skin under the neck of an ox, or a similar feature on any other animal.
   1901 – 1902, Arthur Conan Doyle, The Hound of the Baskervilles Fire burst from its open mouth, its eyes glowed with a smouldering glare, its muzzle and hackles and dewlap were outlined in flickering flame.
2. The sagging flesh on the throat of an elderly human.
   He ended up looking at himself in the mirror. His image stared back at him. He was developing a dewlap - a definite dewlap. He waggled under his chin scornfully with his fingers. 2017, Bernard MacLaverty, “Chapter 2”, in Midwinter Break, page 36