What is a good way to explain trickle down economics and why it is flawed?

I am still new to economics and I am trying to understand all the different types of economic philosophies. I am looking to investigate trickle down economics at the moment. I know this is a political philosophy, but I am trying to understand it completely before I come to a conclusion. If you couldn't tell by my post history, I am a casual observer of economics. I am not a traditional student of economics, I am a casual observer that is trying to read multiple sources and gain multiple perspectives. I agree with some of the principles and I am skeptical of others. I just want to know a simple way to explain it and its flaws. <br><br>Thank you for your time.<br><br>Edit: I am not a college student. I am a 40 year old man with a full time job. My job is in a technical field (I am a machinist) and I am not in college. I just want to understand how this economy works. Thank you for the interest, everyone.