"Some biologists refer to octopuses having six "arms" and two "legs" because the two rear appendages are generally used to walk on the seafloor."
True,
the official term is now "Big Chungus".
As I understand it, you can only use the term "absolute unit" if (a) you are completely in awe of its size and (b) if it is a lad.
unless you are a cr#p chef.
If it stays like that in a pan you're not a good chef though...