Definitions for yahooism
Random House Webster's College Dictionary
Ya•hooˈyɑ hu, ˈyeɪ-, yɑˈhu(n.)(pl.)-hoos.
(in Swift's Gulliver's Travels) one of a race of brutes, having the form and all the vices of humans, who are subject to the Houyhnhnms.
(l.c.) a boorish person; lout.
Origin of Yahoo:
coined by Swift in Gulliver'sTravels (1726)
The behaviour or attitudes of yahoos; ignorant boorishness.