funny farm

noun

, Slang.

1. a psychiatric hospital.

funny farm

noun

1. facetious.
   a mental institution

Word History and Origins

Origin of funny farm¹

First recorded in 1960–65; funny ¹ in the sense “strange, peculiar, odd” and farm in the sense “a place that serves a specified type of client”

Example Sentences

Please send answers to Pink Floyd, care of the Funny Farm, Chalford, St. Giles.

From The Daily Beast