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The Collaborative International Dictionary
Shag-rag

Shag-rag \Shag"-rag`\, n. The unkempt and ragged part of the community. [Colloq. or Slang.]
--R. Browning.

Wiktionary
shag-rag

n. (context slang archaic English) The unkempt and ragged part of the community.