Yahoo definitions

Webster's 1828 Dictionary

YAHOO, n. A word used by Chesterfield, I suppose for a savage, or a person resembling a savage.

WordNet (r) 3.0 (2005)

n
1: a person who is not very intelligent or interested in culture [syn: yokel, rube, hick, yahoo, hayseed, bumpkin, chawbacon]
2: one of a race of brutes resembling men but subject to the Houyhnhnms in a novel by Jonathan Swift
3: a widely used search engine for the web that finds information, news, images, products, finance

Merriam Webster's

I. noun (plural yahoos) Date: 1726 1. capitalized a member of a race of brutes in Swift's Gulliver's Travels who have the form and all the vices of humans 2. [influenced by yahoo (II)] a boorish, crass, or stupid person • yahooism noun II. interjection Etymology: perhaps alteration of yo-ho, interjection used to attract attention, from yo + ho Date: 1870 yippee

Oxford Reference Dictionary

n. a coarse bestial person. Etymology: name of an imaginary race of brutish creatures in Swift's Gulliver's Travels (1726)

Webster's 1913 Dictionary

Yahoo Ya"hoo, n. 1. One of a race of filthy brutes in Swift's ``Gulliver's Travels.'' See in the Dictionary of Noted Names in Fiction. 2. Hence, any brutish or vicious character. 3. A raw countryman; a lout; a greenhorn. [U. S.]

Collin's Cobuild Dictionary

1. People sometimes shout 'yahoo!' when they are very happy or excited about something. EXCLAM 2. Some people refer to young rich people as yahoos when they disapprove of them because they behave in a noisy, extravagant, and unpleasant way. (BRIT INFORMAL) N-COUNT [disapproval]