trick dog; dog that does tricks
Refers to a dog trained to perform tricks, often used in contexts like circuses, shows, or as a metaphor for a well-trained or obedient person.
That trick dog is often seen on TV.
He obeys his boss like a trick dog, doing whatever he is told.
Compound of 芸 (trick, performance), を (object marker), する (to do), and 犬 (dog). Literally 'a dog that does tricks'.