Definition of motormouth
: a person who talks excessively
motormouthedplay \-ˌmau̇thd, -ˌmau̇tht\ adjective
Examples of motormouth in a Sentence
I had to listen to the motormouth's cell phone conversations for the entire commute.
First Known Use of motormouth
MOTORMOUTH Defined for English Language Learners
Definition of motormouth for English Language Learners
: a person who talks too much
Seen and Heard
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