tammany hall

noun

1. a Democratic political organization in New York City, founded in 1789 as a fraternal benevolent society (Tammany Society) and associated especially in the late 1800s and early 1900s with corruption and abuse of power.
2. the building in which the Tammany organization had its headquarters.

noun

1. US politics the central organization of the Democratic Party in New York county. Originally founded as a benevolent society (Tammany Society) in 1789, Tammany Hall was notorious for the corruption in city and state politics that it fostered in the 19th and early 20th centuriesAlso called: Tammany