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flannelmouthed

[flan-l-mouth d, -moutht]
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adjective
  1. talking thickly, slowly, or haltingly.
  2. characterized by deceptive or shifty speech.
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Origin of flannelmouthed

An Americanism dating back to 1880–85; flannel + mouth + -ed3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018