grunt hoot

/ˈɡrʌnt ˌhuːt/
noun
  1. A low, guttural call made by certain primates, especially chimpanzees, often used to communicate about food or social status.
    • Researchers recorded the grunt-hoot of the alpha male to study group communication.
    • A series of grunt-hoots echoed through the forest as the troop moved.
    • The chimpanzee let out a grunt-hoot to signal that it had found fruit.
Synonyms
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