weasel
The dictionary means weasel.
I don't know what this word means in Japan, but what is certain is that this animal seems to be not afraid of snakes, and there seem to be several kinds that eat snakes, so ferrets should belong to orochimaru.
The serpent played so many times and naturally played so many tricks, but the skunk didn't play so much, so it was impossible to refuse him with such certainty, not to mention the serpent himself said that there was no way to take the skunk.
Therefore, the weasel should be stronger than the serpent.