rag, tag, and bobtail
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rag, tag, and bobtaila group of people perceived as disreputable or undesirable.
A bobtail is a horse or dog with a docked tail, while rag and tag both express the idea of ‘tattered clothes’: the phrase literally means ‘people in ragged clothes together with their dogs and horses’. The forms tag, rag, and bobtail , ragtag and bobtail , and tagrag and bobtail are also found.