Okay, I am going to have some courage and give some feedback to Miley because... well no one else might haha this song is actually pretty good! Sure, she gets naked all the time now and has lost a lot of respect but seeing only the music and not the artist, how it should be, I will repeat, this is good! she makes a good comparison of a Wrecking Ball which is used to demolish everything it touches and herself. A person who simply can't stop breaking things. There is this saying that is angsty, which goes something like "Everything I touch turns to ashes" it's like this sort of impotence of not being able to do things right. To ruin everything and not being able to stop because the problem seems to be in oneself. And that could be like a wrecking ball, that could destroy a person and in the end, here it turns out that the broken one is the wrecking ball. They have broken her and there is nothing more left.