nuttery
/ˈnʌtəri/ or /ˈnʌtəri/Definitions
1. noun
A place where nuts are stored, especially a room or building for storing nuts.
“The old farmhouse had a small nuttery in the attic where the family stored their harvest.”
2. noun
A place where eccentric or foolish people are kept, often used humorously or ironically.
“The comedian joked about being locked in a nuttery with the rest of the cast.”