dump truck
n.— «Mr. Minkin is what some drug lawyers deride as a “dump truck,” an attorney whose clients plead guilty and cooperate. Indeed, the 59-year-old Mr. Minkin says he is “second to none in…knowing how to make deals.”» —“Drug Lawyer Offers Feds a Sweet Deal: Crooks Who’ll Fink —- One After Another After Another; Then One Client Halts the Ponzi Scheme” by Paul M. Barrett Wall Street Journal (A1) July 26, 1991. (source: Double-Tongued Dictionary)