Jiriquรก in the Tupi language means snake with a deep mouth. Deep as 3 mouths, the depths of greed that this snake represents cursed it with 3 heads, mouths don't come without eyes. Irony that snakes are blind?
Magic allowed this snake to survive with 3 heads, being fed by 3, thinking by 3, living its triple dilemmas.
It's no wonder that its mouth is deep, it feeds to support two more heads.