The original Snot Goblin has a body similar to a dubbed Wooly Bugger. Dubbing (probably Ice Dub) in a dubbing loop, wrapped around the shank, with Schlappen wrapped around the body. Zonker over the top. "Complex Twist" is something I've tried a couple times now, that the guys over at Fly Fish Food do for some of their flies. You tie in a Schlappen feather, Polar Chennile or similar, and a piece of Cactus Chenille / Estaz / etc. You then twist all three together, brushing it out to prevent trapped fiber. Then, wrap that around the shank.

The original Snot Goblin also has a beard of some kind of dubbing, but no "forehead". I've done a head of dubbing similar to what is done in a lot of big articulated streamers.