[n] pejorative terms for an insane asylum
More below...
Bedlam, booby hatch, crazy house, cuckoo's nest, funny farm, funny house, loony bin, nut house, nuthouse, sanatorium, snake pit
asylum, insane asylum, institution, mental home, mental hospital, mental institution, psychiatric hospital
\Mad"house`\, n. A house where insane persons are confined; an insane asylum; a bedlam.