motor-mouth

American  

[moh-ter-mouth] / ˈmoʊ tərˌmaʊθ /

noun

Slang.

plural

motor-mouths

1. a person who is a constant or irrepressible talker.

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Example Sentences

Wahlberg is in the familiar rapid-fire, rat-a-tat style he has developed over the years, tussling and bantering with everyone around him, and not even his encroaching disability can slow his motor-mouth.

From Los Angeles Times • Apr. 12, 2022

Of course until now, the gaffes have all emerged from the motor-mouth of Donald Trump.

From The Guardian • Sep. 11, 2016

Robin Williams, whose punch lines were often hyperactive, motor-mouth act-outs, is probably the most famous example.

From New York Times • Jan. 28, 2015

This is nothing like the motor-mouth on the telly, laughing in the face of everything.

From The Guardian • Oct. 11, 2014

Now, Ali – the Greatest, the inventor and ne plus ultra of boxing’s motor-mouth braggadocio – has fallen all but silent.

From The Guardian • Sep. 11, 2014