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1. motormouth
Someone who talks incessantly.
I wish that motormouth would shut up
2. Motormouth
is a reality show on VH1 which showcases people unknowingly being taped in their cars while singing a song. It began airing October 26, 2004.
The skits would end when the victim stopped and the cast went in and Zane would say to them, "You've been Motormouth-ed".
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