: a large gregarious marine mammal (Odobenus rosmarus of the family Odobenidae) of arctic waters that is related to the seals and has long ivory tusks, a tough wrinkled hide, and stiff whiskers and that feeds mainly on bivalve mollusks

Information courtesy Merriam-Webster.

Magenta Walrus is such a walrus.  He lives in Milford, Conn.  He tweets and regularly checks his Facebook account.