A person who guttles; someone who eats greedily or gluttonously.
From the verb 'guttle' + agent noun suffix '-er' (one who performs an action). This follows the standard English pattern of converting verbs into nouns describing the person who does the action.
Medieval writers would call someone a 'guttler' as a real insult—it wasn't just about eating a lot, it suggested moral failing and lack of self-control, showing how food and character were connected in older moral thinking.
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