Today newspaper, an article of someone using comparison of phase "taste like horsepiss" and "hot like hell". IMO you can never use them as comparison. As we get the idea that hell is hot, we never get to experience the hotness in hell. As for taste like horsepiss, anywhere with horse, there will be piss. So if you want to use that to describe something, unless you have tasted horespiss, you shouldn't be using it. It will only invite some keyboard warriors and maybe potentials appointments from those official dudes in formal ties and suits. There are enough words in the dictionary to put message across so choose them wisely.