the top dog

the top dog

The person with the most authority, power, or influence in a group or organization. When I was the top dog of the business, I used to charge the most outrageous things to the company credit card. You'll only get a truthful answer if you manage to talk to one of the top dogs.
See also: dog, top

ˌtop ˈdog

(informal) a person, group or country that is better or more powerful than all the others: He’s top dog in television drama now.
See also: dog, top

top dog

n. the person in charge or in power; a company officer. The reporter tried to get hold of one of the top dogs but couldn’t get past the secretary.
See also: dog, top