riñonera
fanny pack
riñón
kidney
+
-era
container or place for
Riñonera means fanny pack and is composed of riñón0 (kidney0) + -era1 (container or place for1). It's called this because it's worn around the waist, near the kidneys.
noun
- fanny packA small bag worn around the waistLlevaba su dinero y llaves en una riñonera mientras hacía ejercicio. // He carried his money and keys in a fanny pack while exercising.