dewlap noun. 
['dju:lap] ME.[from DEW noun + LAP noun1, perh. after Old Norse (Old Danish doglæp).]The fold of loose skin hanging from the neck of cattle; 
transf. a similar feature of another animal, bird, or man.
 ■   dewlapped adjective having a dewlap 
LME.  [TahlilGaran] English Dictionary ▲