dewlap(n = noun.body) - a hanging fold of loose skin on an elderly person's neck;
is a kind of cutis, skin, tegument
is a part of cervix, neck

dewlap, n.
1 a loose fold of skin hanging from the throat of cattle, dogs, etc.
2 similar loose skin round the throat of an elderly person.

Etymology:
ME f. DEW + LAP(1), perh. after ON (unrecorded) d{ouml}ggleppr