Motormouth

noun, verb, slang

Definitions

Noun
  1. 1
    One who talks very quickly or incessantly; a chatty or loquacious person. informal

    "He's such a motormouth that I can never get a word in."

  2. 2
    someone who talks incessantly wordnet
Verb
  1. 1
    To talk very quickly or incessantly. informal, intransitive

Etymology

Etymology 1

From motor + mouth, from the figurative notion that the mouth moves so much that it seems motorized.

Etymology 2

From motor + mouth, from the figurative notion that the mouth moves so much that it seems motorized.

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