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Definition of Motormouth
1. Noun. Someone who talks incessantly. "I wish that motormouth would shut up" 
Definition of Motormouth
1. Noun. One who talks very fast or incessantly. ¹
¹ Source: wiktionary.com
Definition of Motormouth
1. [n -S]
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1. Noun. Someone who talks incessantly. "I wish that motormouth would shut up" 
1. Noun. One who talks very fast or incessantly. ¹
¹ Source: wiktionary.com
1. [n -S]