I've invented this new letter which appears to be two 'M's stuck to each other

But actually it's one giant 'M' made of two smaller ones. But what does it sound like? Well, that doesn't matter because it's all about presentation. Nobody really even knows what it sounds like.


In fact, some scientists theorize that the phonemes required to produce this noise do not exist in human speech. Others suggest that what noise it is only register somewhere outside the limits of human hearing.