Answer:
I am like thunder in your cranium
What's full of holes but still holds water?
I don't live within a house nor do I live without. Most will use me when they come in and again when they go out.
I like to twirl my body but keep my head up high. After I go in everything becomes tight
I am flora not fauna. I am foliage not trees. I am shrubbery not grass.
What made Cyclops quit teaching?