yahoo

from The Century Dictionary.

• noun A name given by Swift, in “Gulliver's Travels,” to a feigned race of brutes having the form of man and all his degrading passions.
• noun [lowercase] A rough, brutal, uncouth character.
• noun [lowercase] A greenhorn; a back-country lout.

from the GNU version of the Collaborative International Dictionary of English.

• noun One of a race of filthy brutes in Swift's “Gulliver's Travels.” See in the Dictionary of Noted Names in Fiction.
• noun Hence, any brutish or vicious character.
• noun United States A raw countryman; a lout; a greenhorn.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun one of a race of brutes resembling men but subject to the Houyhnhnms in a novel by Jonathan Swift
• noun a person who is not very intelligent or interested in culture
• noun a widely used search engine for the web that finds information, news, images, products, finance