Okay kiddo, have you ever heard a really scary sound in a horror movie or a haunted house ride? That's kind of like what a death growl is. It's basically a super deep, rough kind of singing or screaming that some people use in music, especially in heavy metal and hardcore genres.
To make a death growl, the singer has to use their throat and voice in a special way. Instead of just singing normally, they use their vocal cords to make a really intense, raspy sound that's kind of like a cross between a scream and a growl. It sounds really intense and intense, kind of like a monster or a demon.
Some people might think that death growls sound scary or even violent, but actually a lot of musicians use them just to add some extra excitement or energy to their music. And believe it or not, some people actually practice doing death growls so they can get really good at it and use it in their own music!
So, in short, a death growl is a really deep, intense, and kind of spooky way of singing or screaming that some musicians use to make their music even more exciting and thrilling.