I am going to call my nanny a motor mouth.
Why are you calling your nanny a motor mouth?
Every time I try and relate to her a little bit she talks non-stop.
Your nanny is there to take care of you and while you may be annoyed at her talking, it is not okay to be disrespectful to her. Instead of calling her names, you should ask her not to talk so much because it annoys you.
Don't you think its weird that someone who is 45-years old doesn't know when to stop being a motor mouth?
I can understand it might get annoying for someone to get talking, but it is rude to be disrespectful to a nanny. You should politely let her know that she is talking too much and you can't concentrate.