Rise from the dead!
I can't believe this. I found it! I haven't had that feeling of finding something lost in a long time. This is the tongue scene I was looking for. It's strange how your memory works when you get older. But the main parts were there. I found this while looking for a good image of that poster in the Nightmare on Elm Street 4 waterbed/wet dream sequence. Looking for videos I saw this video on the side.
Ghoulies Tongue Scene -
It's still kind of freaky. So is that part with the dummy before the scene. I'm going to check this movie out.