motor-mouth: meaning, definition, pronunciation and examples

C1
UK/ˈməʊtə maʊθ/US/ˈmoʊt̬ɚ maʊθ/

Informal, often humorous

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Quick answer

What does “motor-mouth” mean?

A person who talks excessively or rapidly.

Audio

Pronunciation

Definition

Meaning and Definition

A person who talks excessively or rapidly.

A noun referring to someone whose speech is characteristically incessant, fast, and often without much forethought; can also be used attributively (e.g., motor-mouth friend).

Dialectal Variation

British vs American Usage

Differences

No significant difference in meaning or form. The term is equally common in both varieties.

Connotations

Slightly more likely to be used in a teasing, less critical way in British English. In American English, it can carry a stronger implication of annoyance.

Frequency

Moderately common in both varieties, with similar frequency.

Grammar

How to Use “motor-mouth” in a Sentence

be a motor-mouthhave a motor-mouthcall someone a motor-mouth

Vocabulary

Collocations

strong
real motor-mouthtotal motor-mouthsuch a motor-mouth
medium
motor-mouth friendmotor-mouth tendenciesfamous motor-mouth
weak
little motor-mouthoffice motor-mouthpolitical motor-mouth

Examples

Examples of “motor-mouth” in a Sentence

verb

British English

  • Verb form is extremely rare and non-standard.

American English

  • Verb form is extremely rare and non-standard.

adverb

British English

  • Adverb form does not exist.

American English

  • Adverb form does not exist.

adjective

British English

  • He's got a motor-mouth brother who never stops.
  • Her motor-mouth commentary was hilarious.

American English

  • I have a motor-mouth coworker in every meeting.
  • His motor-mouth habits are well known.

Usage

Meaning in Context

Business

Rare. Might be used informally to describe a colleague who dominates meetings.

Academic

Very rare; considered too colloquial.

Everyday

Common in informal conversation and descriptions.

Technical

Not used.

Vocabulary

Synonyms of “motor-mouth”

Neutral

chatterboxtalkative person

Weak

big talkertalker

Vocabulary

Antonyms of “motor-mouth”

reticent personman/woman of few wordstaciturn individual

Watch out

Common Mistakes When Using “motor-mouth”

  • Using it as a verb (e.g., 'He motor-mouthed the story' is non-standard).
  • Spelling inconsistently (motor mouth, motormouth). Hyphenated form is standard.

FAQ

Frequently Asked Questions

It can be, depending on tone and context. It is often used humorously or affectionately among friends, but it can also express irritation.

No, it is not standard. It is primarily a noun and can be used attributively as an adjective. Using it as a verb (e.g., 'He motor-mouthed the plans') is non-standard and would sound odd.

The standard, dictionary-recorded spelling is hyphenated: 'motor-mouth'.

Not directly. Terms like 'conversationalist' or 'communicative' are positive but do not carry the same connotation of excessive or rapid speech. 'Motor-mouth' inherently suggests a lack of restraint.

A person who talks excessively or rapidly.

Motor-mouth is usually informal, often humorous in register.

Motor-mouth: in British English it is pronounced /ˈməʊtə maʊθ/, and in American English it is pronounced /ˈmoʊt̬ɚ maʊθ/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • She's got a motor-mouth that just won't quit.
  • His motor-mouth gets him into trouble.

Learning

Memory Aids

Mnemonic

Imagine a mouth with a motor inside, making it run (talk) non-stop.

Conceptual Metaphor

THE MOUTH IS A MACHINE (that runs incessantly).

Practice

Quiz

Fill in the gap
Ever since she was a child, Sarah has been a ; she can talk for hours without pause.
Multiple Choice

In which context is 'motor-mouth' LEAST likely to be used appropriately?

Practise

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Five interactive tools to remember words, train your ear, and build vocabulary in real context — drawn from this dictionary.

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