Definition of banana belt
US, informal
: a warm region
—usually used in an exaggerated or facetious way to refer a relatively warm area in a region known for its cold climate
- … our last days on the peninsula (the arm of Antarctica that polar scientists disdain as the “Banana Belt”) …
- —Kate Ford, Wall Street Journal, 12 June 1998
- Anything south of here is considered Oregon's banana belt—temperatures run higher than elsewhere on the Oregon coast.
- —Jacques Von Lunen, Oregonian, 2 June 2009
