flatbacker

English

Etymology

flat +‎ back +‎ -er, from spending time lying flat on their backs.

Noun

flatbacker (plural flatbackers)

1. (slang) A female prostitute who services a large number of customers.
   • 1971, New York Magazine, volume 4, number 30, page 26:

     Good flatbackers always fare well, which accounts for their swelling ranks. They work the offices along Madison and Lex like a Schrafft's super-hospitality wagon. Score the flustered john in the elevator, simple!

   • 2014, John Turnipseed, Cecil Murphey, Bloodline:

     If we had straight flatbackers, as we called them, they turned a date for twenty or twenty-five dollars. Nobody was allowed to rob them because they'd become regular customers.

   • 2016, Tom Philbin, Precinct: Siberia:

     He had four girls in this stable and worked them as “flatbackers”—they would take anyone on, one after another, fifteen, twenty tricks a night, and it didn't matter if the girls were sick, menstruating, whatever: they had to work […]