Jackass penguin Meaning, Definition & Usage

  1. noun small penguin of South America and southern Africa with a braying call
    Spheniscus demersus.

WordNet

Definitions
  1. (Zoöl.), any species of penguin of the genus Spheniscus, of which several are known. One species (S. demersus) inhabits the islands near the Cape of Good Hope; another (S. Magellanicus) is found at the Falkland Islands. They make a noise like the braying of an ass; hence the name.

Webster 1913