What exactly does the term 'gamey' mean?

when some calls a dog  gamey, it can mean they are more of a lean, very hyper, and with LOTS of drive! most of my dogs are gamey. due to the fact i have dogs who can jump a 6 foot fence, i have a 6 month old puppy who can climp up his kennel, which i put a topper on to keep him in, but he will climb up the chain link, grap the topper (chain link) and hang with his mouth and tug on it like a rope, till he has a hole and then will climb out the hole in which he just tore open!! i even have ones who rip up chain link! in which it is not that they dog get enought walks and play, i spend hours with them a day!! i have to keep them toned and in shape for dog shows, and pulls. but in the term "gamey" to me that is, is a very high drive, lean, toned dog! and in which some of them keep thier self toned and in shape on thier own!!!