A hound it was, an enormous coal-black hound, but not such a hound as mortal eyes have ever seen. Fire burst from its open mouth, its eyes glowed with a smouldering glare, its muzzle and hackles and dewlap were outlined in flickering flame.
Source: tatoeba (6620774)
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.
Source: wiktionary
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.
Source: wiktionary