UncleBob
Greenlighter
I get this when I'm on MDMA/similar. It's horrible...Gets all over my gums, teeth and lips, and it's more of a paste. I also pull out whole furballs and clumps of material from my mouth. It's as though my mouth is so dry it's actually full of god knows what....hair, wool, cotten. Makes me look like a dead person.
I think it's what happens if you have a completely dry mouth for hours on end...But I have no idea why saliva turns into a thick black paste.
Pretty sure what you're talking about is just increased bacteria growth from having a dry mouth. I had this something awful last night when I was trying to sleep after a bit of a speed binge; my tongue and gums felt swollen and I could feel canker sores forming on my tongue. I've never gotten a furball though lol