Definition of jackass penguin
: a penguin (Spheniscus demersus) of western South America and southern Africa whose note suggests the braying of an ass
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up jackass penguin? Please tell us where you read or heard it (including the quote, if possible).