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                           general:: 
                           Phrase(s): blue collar  of the lower class or working class; of a job or a worker, having to do with manual labor. (Also, when used as an attributive adjective, often blue-collar. Compare this with white collar. Alludes to the typical color of work shirts worn by mechanics, laborers, etc.)  •  His parents were both blue-collar workers. He was the first person in his family to go to college.  •  They bought a house in a nice, settled, blue-collar neighborhood.
                           
                           
                           
                           
                        
    
                       
                    
                        
                        
                        
                    
 
                    
                        McGrawhill's American Idioms And Phrasal Verbs