Swa ‧ nee, the /ˈswɒni $ ˈswɑː-/ BrE AmE
1 . the Suwannee, a river in the south of the US, flowing through Georgia and Florida to the Gulf of Mexico
2 . go down the Swanee British English informal if a plan goes down the Swanee, it fails or does not happen in the way you intended