US,  informal      
      
                                
                                
              
          
                                                      : the area in the back of a van, station wagon, or SUV                                      
              
                             
… the scant storage behind the third seat. The seatback folds, but the only way to open up the wayback is to remove the third seat entirely.— Michael Lamm
Michael Lamm
                         
                
                    Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share