1
                    
                                          
              
          
                                                      : a board or gate at the rear of a vehicle that can be removed or let down (as for loading)                                      
                
                    
2
                    
                                  
          
[from the custom of seating trombonists at the rear of trucks carrying jazz bands in parades]                                  
              
          
                                                      : a jazz trombone style marked by much use of slides to and from long sustained tones                                      
                
                    
3
                    
                                US 
                                  
              
          
                                                      : tailgate party                                      
              
                             
Nowadays, tailgates have evolved into mobile feasts: face-to-face social networks where complete strangers bond over food and drink, and everyone is eager to share.—
Greg Ferro
                         
                
                    
            
              tailgated; tailgating            
        
    1
                    
                                          
              
          
                                                      : to drive dangerously close behind another vehicle                                      
                
                    
2
                    
                                US 
                                  
              
          
                                                      : to have a tailgate party                                      
                
                    
                                
              
          
                                                      : to drive dangerously close behind                                      
                
                    
                                                      tailgater
                                      noun
                                                                            
    
        US      
      
                                
                                
              
          
                                                      : relating to or being a tailgate party                                      
                
                    
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  Merriam-Webster unabridged




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