Sure! Here are some example sentences using "motormouth": 1. Jake is such a motormouth; he talked non-stop for the entire meeting. 2. I couldn't get a word in during lunch because Sarah was being a total motormouth. 3. He's a motormouth, but at least he keeps the conversation lively. 4. You have to be patient with Karen; she's a bit of a motormouth when she's excited. 5. As soon as the interview started, the motormouth in him took over, and he barely let anyone else speak. It generally describes someone who talks a lot and very quickly!

Never have I heard that word, but it explains itself. "Blabbermouth" is the term I would use. As one might suspect, it signifies one who blabbers. Should you be such a person ("motormouth" or whatever) it is not likely that anyone will inform you that you possess this quality, though it is possible they might avoid your presence.

A person who talks quickly and continuously, often without considering what they are saying

I could give you loads of sentences, but I don't want to sound like a motormouth.

My Mother is such a motormouth, she can talk for hours!