a loose fold of skin hanging from beneath the throat in cattle, dogs, etc
2.
loose skin on an elderly person's throat
Derived forms
dewlapped (ˈdewˌlapped)
adjective
Word origin
C14 dewlappe, from dew (probably changed by folk etymology from an earlier form of different meaning) +lap1 (from Old English læppa hanging flap), perhaps of Scandinavian origin; compare Danish doglæp