Sentence:  Marcus Miller, "The Mother Truckers" (San Diego: Phenix Publishers, 1968) / Truck drivers Joe, Jimmy, and Allyson cruise the nation's highways in a never-ending quest for <WSD>rough trade</WSD>. That's how they get their kicks and break free from the boredom of the road. When they cross paths with Gino and his biker gang, however, the truckers get more than they've bargained for. These hardcore homos are into heavy-duty sadomasochsim, and they think they've found three new slaves! 
Meaning of the word marked with <WSD> tags:  Violent or sadomasochistic sex, especially casual gay sex.