I'm always on the lookout for funny sayings, proverbs, puns, slogans, and so on. I came across this British saying, which basically describes someone who says a lot of things that they plan to do or promise but just don't ever follow through. I've heard it's used to describe certain politicians. Ha! I won't get into political talk here... Anyway, you get the drift. I wanted to somehow show someone caught with their pants down, but I couldn't think of a way to do it tastefully. Instead, the mouth gets the point across, I think.