One of the mysteries of the English language finally explained.
1An elephant living apart from the herd and having savage or destructive tendencies.
2A person or agency whose activities are antisocial and destructive.
Mid 19th century. From rogue + elephant. Compare Sinhala hora aliyā from hora thievish, restive (from horā thief from Sanskrit cora) + aliyā elephant (not the usual word for the animal; from Tamil alliyaṉ stray elephant), although it is uncertain whether the English expression is after Sinhala or vice versa.
rogue elephant/ˌrəʊɡ ˈɛlɪf(ə)nt/
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