Think before you talk

The podcast discusses the importance of thinking before speaking. The term 'shut your pie hole' is used to emphasize the idea that someone is trying to tell you to think before you talk. Just like pulling the trigger of a gun, once you say something, you cannot take it back. The speaker advises listeners to think about what their words would sound like if someone else said them, from other people's perspectives. By using this filter, one can avoid wasting breath and people's time with potentially unimportant or irrelevant comments.