drongo
noun
[ ˈdrɒŋɡəʊ ]
• a songbird with glossy black plumage and typically a long forked tail and a crest, found in Africa, southern Asia, and Australia.
• a stupid or incompetent person.
• "I gave that drongo fifty dollars and he only gave me change for ten!"
Origin:
mid 19th century: from Malagasy. drongo (sense 2) is said to be from the name of an Australian racehorse of the 1920s which consistently finished last or near last.