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                           general:: 
                            Phrase(s): go at something like a boy killing snakes 
Rur. to do something with a great deal of energy.  •  Once Mary decided to take that test, she went at her books like a boy killing snakes.  •  I hired Joe to weed my garden, and he went at it like a boy killing snakes.
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs