Top Definition
Someone who never shuts up, excessive chatter.
Brock is such a fucking motor mouth, my fucking ears are hurting.
by John Harrison October 19, 2004

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a person who is very talktive
This motor-mouth always follows me around at lunch time. I am sick of listening to his mindless chatter.
by Light Joker July 10, 2005

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Someone who talks incessantly.
I wish that motormouth would shut up
by MusicMat February 06, 2011

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The Urban Dictionary T-Shirt

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1. A person who talks too fast and too much. The fast talker won't wait for a break in the conversation, they just overtalk everyone else.
2. A bad actress who rushes her lines because she's afraid of forgetting them.
Don't invite Mia to the party, she's an obnoxious motormouth.
by KImCobain February 27, 2015

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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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".
by a.rico October 20, 2010

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt