noun Slang.

a movie, television show, etc., about the frontier days of the U.S. West; western; horse opera.

Origin of oater

First recorded in 1945–50; oat + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for oater


Word Origin and History for oater

Western film, "horse opera," 1946, from oat, as the typical food of horses.

Online Etymology Dictionary, © 2010 Douglas Harper