attack dog
noun
a dog trained to attack on command, as for protection or to aid in the apprehension of criminals.
Origin of attack dog
First recorded in 1965–70
Words nearby attack dog
attachment theory,
attaché,
attaché case,
attack,
attack ad,
attack dog,
attack rate,
attagirl,
attain,
attainable,
attainder
Example sentences from the Web for attack dog
But he hurt himself with a chip-on-the-shoulder demeanor and attack-dog aggressiveness against Mitt Romney.