1
                    
                                  
 or less commonly blah-blah    
                                  
              
          
                                                      : silly or pretentious chatter or nonsense                                      
                
                    
2
                    
                                blahs  plural                          
          
[perhaps influenced in meaning by blasé]                                  
              
          
                                                      : a feeling of boredom, lethargy, or general dissatisfaction                                      
                
                    
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  Merriam-Webster unabridged




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