The story
From guttle (“to swallow (something) greedily; to gobble; to guzzle; to eat voraciously; to gorge”) + -some (“characterized by some specific condition or quality, usually to a considerable degree”).
Etymology from Wiktionary, CC BY-SA 4.0.
guttlesome
Today it means: Greedily eating and gorging oneself; gluttonous. Full definition →