The doomgape a horror designed for consumption. It is an enormous (40' tall) monster lurching and crashing over the haunted countryside. It has no eyes, but its mouth is immense, able to swallow a horse in one go, and it has an unsettling number of joints and reticulation to its jaw, like a deep-sea grouper. It has many fangs/tusks.
This creature seems only semi-real, dreamlike somehow. It is more surreal and preternatural than an ordinary monster.
It eats and eats until the juiciest morsel it can find is itself.