EAR WORM

 a horror monster i made (lore below)

earworm is a parasite that latches into your brain through your ear canal.

when you hear a catchy song, a part of it will start repeating in your brain constantly (just like a metaphorical earworm), but it will keep going, every day getting louder and louder.

until one day when its so loud you cant comprehend it, so two giant speakers bust out of your ears and your mouth dements into a bigger mouth (??).

then you go eat people for a few days constantly repeating that part of the song.

and after that you explode into a lot more earworms to continue the cycle.