english
                    
                    
                    
                        1
                           general:: 
                           Phrase(s): *sober as a judge 1. Cliché very formal, somber, or stuffy. (*Also: as ~.)  •  You certainly look gloomy, Bill. You’re sober as a judge.  •  Tom’s as sober as a judge. I think he’s angry. 2. Cliché not drunk; alert and completely sober. (*Also: as ~.)  •  John’s drunk? No, he’s as sober as a judge.  •  You should be sober as a judge when you drive a car.
                           
                           
                           
                           
                        
    
                       
                    
                        
                        
                        
                    
 
                    
                        McGrawhill's American Idioms And Phrasal Verbs
                    
                    
                    
                        2
                           general:: 
                           Not at all intoxicated, quite clear-headed, as in Even after three drinks he was sober as a judge. Why judges should be equated with sobriety is not known, but the simile was first recorded in 1694.
                           
                           
                           
                           
                        
    
                       
                    
                        
                        
                        
                    
 
                    
                        American Heritage Idioms