attack dog

American  

noun

1. a dog trained to attack on command, as for protection or to aid in the apprehension of criminals.

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Etymology

Origin of attack dog

First recorded in 1965–70

Example Sentences

While Blanche’s predecessors in the No. 2 spot kept lower profiles and managed the Justice Department’s day-to-day operations largely behind the scenes, he is often a vocal and visible attack dog.

From The Wall Street Journal • Apr. 4, 2026

Another “Fall Guy” co-star — an attack dog that responds only to commands in French — had particular poignance for Gosling.

From Seattle Times • Mar. 13, 2024

In Bakersfield, for example, “more than half of all people severely injured by an attack dog in 2020 were displaying symptoms of mental illness or impairment.”

From Los Angeles Times • Jan. 10, 2024

Mr Christie appeared to find his greatest success on the debate stage in his return to his faithful role as an attack dog focused squarely on Mr Trump.

From BBC • Dec. 7, 2023

He drew occasional laughter in the courtroom with self-deprecating quips about his lack of financial acumen, in a contrast to the sharp-edged persona he has cultivated as his father's political attack dog.

From Reuters • Nov. 2, 2023