Definition of yahoo
- yahoo Noun A rough, coarse, or uncouth person; yokel; lout.
- yahoo Noun A loud boisterous person.
- yahoo Noun A derogatory term for a white person from the Confederate South (i.e., United States).
- yahoo Noun A humanoid cryptid said to exist in parts of eastern Australia, and also reported in the Bahamas.
- yahoo Interjection An exclamation of joy.
- yahoo Interjection A battle cry.