The sack of flesh that hangs below a turkeys chin that contains his gobblers. The juiciest part of a turkey, also the name for the loose skin underneath a fat persons (gravydumpster) chin - in which case it is disgusting.
This Thanksgiving you can keep the turkey breast and legs, I am just trying to munch on that gobblesack.
Did you see that hambeast that just walked by? That motherfucker had a gobblesack hanging down to his nips.