diesel therapy
n.— «Rinaldo Reino, a wheelchair-dependent inmate from the U.S. Medical Center for Federal Prisoners at Springfield, Mo., charged Wednesday that he was threatened with the punishment of a grueling bus trip—what inmates call “diesel therapy”—just days before he was to testify before a House subcommittee on health care at the facility.» —“Reprisal Alleged By Inmate” by Charlotte Grimes in Washington, D.C. St. Louis Post-Dispatch (Mo.) July 18, 1991. (source: Double-Tongued Dictionary)