mouthful of marbles
- idiom
- Informal
- After his dental surgery, he sounded like he had a mouthful of marbles when he spoke.
Examples
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Whenever he gets nervous, he talks as if he has a mouthful of marbles.
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The phone connection was so bad, her words came across like a mouthful of marbles.
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He spoke in a mouthful of marbles during the presentation.
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Why does she always sound like a mouthful of marbles?
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After his dental surgery, he sounded like he had a mouthful of marbles when he spoke.
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The phone connection was so bad, her words came across like a mouthful of marbles.
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Whenever he gets nervous, he talks as if he has a mouthful of marbles.
Synonyms
Speaking quietly and not clearly so people cannot understand
Words spoken slowly and unclearly because someone is very tired, ill, or drunk
Antonyms
How Clear
Surface Forms
Morphology
mouthful + of + marbles
The figurative meaning follows directly from the literal components: a 'mouthful' is something that fills the mouth and 'marbles' are small hard balls, so having a mouthful of marbles plausibly makes speech indistinct. This concrete, image-based mapping is easily inferable by a B1 learner who knows the constituent words, so the expression is compositional and transparent.
Etymology
Mouthful of marbles comes from the clear picture of someone with a mouthful of marbles; the hard, round balls muffle the voice and make words roll together. That's why people use it to say speech is 'unclear' or 'hard to understand'.