Yahoo (?), n. 1. One of a race of filthy brutes in Swift's “Gulliver's Travels.” See in the Dictionary of Noted Names in Fiction.[Webster 1913 Suppl.]
2. Hence, any brutish or vicious character.[Webster 1913 Suppl.]
3. A raw countryman; a lout; a greenhorn. [U. S.][Webster 1913 Suppl.]