Possum of the Grotto

I looked up "Alkilize" on dictionary.com, after nothing came up, so I tried "Alkalize" and go "Alkali" and go:

1. A carbonate or hydroxide of an alkali metal, the aqueous solution of which is bitter, slippery, caustic, and characteristically basic in reactions.
2. Any of various soluble mineral salts found in natural water and arid soils.
3. Alkali metal.
4. A substance having highly basic properties; a strong base.

So in conclusion, I have no clue what this song means at all. :D