good money
n.— «Customers say Alberto is “good money,” a slang term meaning he is good at his job. They know Alberto is aware of the small intricacies regarding their hair and the way it grows.» —“‘Cutting heads’ the Brooklyn way – Inside a real life ‘Barbershop’ where there’s more ‘hair’ than meets the eye” by Javier Sanabria Brooklyn Graphic (New York City) Feb. 8, 2007. (source: Double-Tongued Dictionary)