Doofus

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Doofus: Stupid oaf.

Some suggest that doofus comes from the German word for dumb; doof. Maybe so. Seems more likely to be a made up word which sounds funny. It is associated with students and is rarely heard today; seems to have peaked in the 1930's. At least one dictionary opines that doofus may have been constructed from doo-doo and goofy. In any case, anyone using it nowadays runs the risk of having it applied to himself.
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