motormouth

/ ˈməʊtəˌmaʊθ /

noun

1. slang,  a garrulous person

Example Sentences

A motormouth book agent mustn't speak, otherwise a magical tree will die, and so will he.

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A few years later, when Lawrence saw Vaughn as the motormouth Trent in “Swingers,” he felt a joyous thrill of recognition.

Read more on Los Angeles Times

Paul Giamatti would just like to put it out there that maybe he doesn’t always have to play such a motormouth.

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Certainly, the unwillingness of Republicans — even a motormouth like Donald Trump — to talk about this issue suggests that there's weight to this political strategy.

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Dad is grumbling in the back seat, which he shares with his motormouth 6-year-old son.

Read more on New York Times

Related Words

• chatty 
• glib 
• loquacious 
• voluble