Definitions: (1) working rapidly or energetically; (2) aggressive <especially in business>; (3) to urge, prod, or speed up

Quote: Some people revel in getting their hands dirty. […] People with hustle also tend to be much more agile—they’re the water that goes around the rock. These are the people you want around when everything goes wrong. They’re also the people you want beside you when everything goes right. — Leah Busque (1979-) American entrepreneur