American English

Definition of attack dog noun from the Oxford Advanced American Dictionary


    attack dog

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  1. 1a dog that has been trained to attack people or other animals the use of attack dogs against prisoners four breeds of attack dogs
  2. 2(disapproving) a person who often makes strong personal attacks on other people in public His image has changed from statesman to attack dog. the Republican party's most famous attack dog
See the Oxford Advanced Learner's Dictionary entry: attack dog