A dirty, shabby, shabbily-clothed child; an urchin.
(According to wikipedia:Brewer's Dictionary of Phrase and Fable, Brewer's Dictionary of Phrase and Fable): A muffin is a poor thing of a creature, a 'regular muff'; so that a ragamuffin is a sorry creature in rags.
Etymology: From the w:Middle English language, Middle English Ragamuffyn.
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