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Phrase(s): pull all the stops out
Fig. to use everything available; to not hold back. (Alludes to pulling out all of the stops on an organ so that it will sound as loud as possible.) • The mayor decided to pull out all the stops and campaign in every district. • Todd pulled all the stops out for his exhibition and impressed everyone with his painting artistry.
McGrawhill's American Idioms And Phrasal Verbs