A good bath is like a dead lover.
You can enjoy them, that is until they get too cold.
Alright listen up, dummy. This joke is saying a nice bath is like a dead lover. At first, it's all good, right? But then, just like a bath gets cold, a dead lover ain't gonna be much fun after a while. Get it? You probably don't, you look like the kinda guy who thinks soap is a food group.