Someone who eats, especially someone who eats greedily or often; used in Yiddish-influenced English.
From Yiddish 'fressn,' formed with the agent suffix '-er' (one who does something). This word follows the same Yiddish-influenced pattern as 'fress' and appears primarily in North American English communities.
Fresser shows how Yiddish brought not just words but productive word-formation patterns into English—you can add '-er' to make agent nouns in English, and it worked perfectly with this borrowed verb!
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