If you mean the two bits of hanging tissue just under the jawline - wattles, waddells or tassles - or if you mean at the end of the lower chin - a beard.
On turkeys and goats it hangs from under the chin... On humans (only males) it hangs from the pelvis
Those are called wattles. They have no purpose.
The beard like a flap under their chin called a dewlap or bell.
Sometimes called a beard, which is probably the most common term used in this case, it's a sort of hairy flap under the chin, also called a dewlap or bell. As the moose matures the flap grows into a beard-like feature.
The red skin hanging off their beak is called a wattle. And you probably already know that the top is called a comb. They are used in courtship and other displays of the like. It is also a sign of maturity. Thanks, DavidJr
if it has a gobble thing under its chin it is a boy if it doesn't have a gobble thing under its chin it is a girl
On turkeys and goats it hangs from under the chin... On humans (only males) it hangs from the pelvis
The scientific term for the extra skin under the chin is called the Flarper
Those are called wattles. They have no purpose.
This could be submandibular oedema and can be due to worms such as Barber's Pole (Haemonchus contortus)
bib
A jowel
If you're talking about what you lead them with, it's called a lead rope. This is attached to the bottom part of the halter usually under the horse's chin.
google "cat acne" and you will find the answer
The bright red thing under the turkey's chin is the gobbler, that just gives aura of importance. (I think)
A turkey. Under the chin its called a Giblet.
It is called a wattle. It is used for attracting a mate and for cooling the turkey down on hot days.