cultus adjective worthless, bad, useless, insignificant US,1851 From the Chinook trading jargon.
“Bad medicine,” “chaffy,” “snide,” “jim-crow,” and “pizen” are applied to anything worthless on the Eastern slope of the Rockies while “cultus,” a Chinook Indian word–is most frequently employed with like significance upon the BC side. — AlbertaHistoricalReview, p. 14/2, 1962