"doofer : (slang) An object the name of which the speaker or writer cannot remember or does not know...."

“doofer : (slang) An object the name of which the speaker or writer cannot remember or does not know. [from 1930s]
(slang, specifically) The remote control for a television. […]
(Australia, slang) A participant in a doof (“outdoor dance party held in remote bushland or on the outskirts of a city”).”

- https://en.wiktionary.org/wiki/doofer#English

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