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Meaning of sloper

slop•er

Pronunciation: (slō'pur), [key]
— n.
  1. a person or thing that slopes.
  2. a basic pattern developed on paper by drafting or in cloth by draping, but with seam allowances omitted, used as a tool to create other patterns.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.