onolatry
/əʊˈnɒlətri/ /əˈnɒlətri/rare
noun
Worship of the donkey or ass. Also in extended use: excessive admiration for or devotion to foolishness or a foolish thing.
Origin
Early 20th century; earliest use found in Journal of American Folklore. From ancient Greek ὄνος ass + -latry; compare -olatry.