a good thing - A good thing is a way of cheering for a horse or a dog in a

A good thing is a way of cheering for a horse or a dog in a race. You shout it at the top of your lungs, especially if you bet on the race.

I shouted ‘You beauty!’ at the horse. It won the race.

I said ‘You little ripper!’ to the dog. It ran faster than the others.

I yelled ‘You beauty!’ at the greyhound. It came in first.