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fat mouth

Slang definitions & phrases for fat mouth

fat mouth

noun phrase

One who talks incessantly; motor-mouth: With very little prodding Jimmy began the conversation because he was feeling like a fat mouth

[1942+; probably fr the locution I had to open my big fat mouth]

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Examples from the Web for fat mouth
Historical Examples
  • "Shut your fat mouth," said Stalky, dancing with impatience.

    Stalky & Co. Rudyard Kipling
  • How often have I told you, Papa Marlowe, to keep your fat mouth shut?

    The Gray Mask Wadsworth Camp

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