hack-up
 n.— «Mr. Salazar had to visit…the Taxi and Limousine Commission center in Woodside, Queens, for his rate card, used car inspection and “hack-up,” the actual affixing of his new medallion to the hood of his car.» —“For New York Cabby, First the Dream, Now the Reality” by Michael Luo New York Times May 27, 2004. (source: Double-Tongued Dictionary)