However, the skunk is not technically a weasel, but rather a member of the Mephitidae family. While closely related to weasels, they have a distinct evolutionary path and are known specifically for their potent defensive spray.
Within the true weasel family (Mustelidae), ferrets are known for having a strong musky odor, especially when they are in heat. This odor can be quite pungent and unpleasant.
It's important to note that the intensity of the smell varies by species and individual animal. However, if we're looking at the weasel family specifically, ferrets would likely be considered the smelliest.