In the context of crossword puzzles, the phrase signifies a vehicle capable of hauling multiple trailers. A semi-truck, also known as an eighteen-wheeler or tractor-trailer, is a common solution. This type of clue relies on the solver’s general knowledge of vehicles and their functions.
Such clues offer a level of complexity beyond simple definitions. They require solvers to think conceptually about the characteristics of different vehicles. The use of misdirection is also common, where the clue may initially suggest smaller vehicles or even animal-drawn carts, enhancing the puzzle’s challenge and rewarding the solver’s deduction skills. This type of clue has likely been a staple of crossword puzzles since their inception, evolving alongside transportation technology.
