hangdog expression/look . the literal meaning of hangdog ?
Could anyone here provide me with the literal meaning of hangdog ?
does it mean the dog is hung
I know hangdog expression means Having a dejected or guilty appearance; shamefaced:

Question

hangdog expression/look . the literal meaning of hangdog ?
Could anyone here provide me with the literal meaning of hangdog ? 
does it mean the dog is hung 
 I know hangdog expression means Having a dejected or guilty appearance; shamefaced:

Answer

http://www.etymonline.com/index.php?allowed_in_frame=0&search=hangdog