So I know I watched this show when I was younger and one of the episodes had a bunch of kids and they got encased in this purple goo. I think it was the bubble gum they were chewing but I could be wrong and it could have been some weird doll doing it... its bugging me so bad that I can't remember!!

Was it something like goosebumps or are you afraid of the dark?

It was the 3 part Episode of GhostWriter Attack of the slime monster