The saying is kind of silly isn't it? But in essence, it means to remain silent. Like me, do you find yourself in situations where if you spoke your mind it would just end up getting you into trouble? I'm an emotional person, I tend to react right away and sometimes it can be pretty intense. Not extreme, I don't think, but definitely a little over the top which I am and have been working on. As I have grown over the years, I have found that not reacting right away and taking the situation to prayer and council with my heavenly father and loved ones (usually my husband and my mom), it helps me to handle the situation much better. If not, I would end up saying something I either regretted or I would just get myself really worked up with anger or sometimes sadness.