Aún no tenemos significados para "have a hangdog".
1Her eyes were red from crying and she had a hangdog expression.
2Like those they had seen in the canoes he had a hangdog, shiftless look, different from the bold warrior of the more northerly forests.
3His hand was yet on the chamber-door, and Barnes was calling his miscreant and scoundrel within; so no wonder Barnes had a hangdog look.