The common weasel, little weasel, or simply weasel (Mustela nivalis), the smallest member of the weasel genus Mustela, native to Eurasia, North America, and North Africa.
An amphibian, a kind of frog (order Anura) with shorter hindlegs and a drier, wartier skin, many in family Bufonidae.
An ugly person.
A contemptible or unpleasant person.
To expel (a user) permanently from a MUD or similar system, so that their account is deleted.