puff. 1  a short, quick blast, as of wind or breath. 2  an abrupt emission of air, smoke, vapor, etc. 3  an act of inhaling and exhaling, as on a cigarette or pipe; whiff. 4  the sound of an abrupt emission of air, vapor, etc. 5  a small quantity of vapor, smoke, etc., emitted at one blast. 6  an inflated or distended part of a thing; swelling; protuberance.
The Shetland Sheepdog is related to the Rough Collie, both dogs descended from Border Collies that inhabited Scotland. The Border Collies were brought to the Scottish island of Shetland and crossed with the Icelandic Yakkin, a small island dog which is now extinct. By 1700, the Sheltie was completely developed.
The Shetland Sheepdog, often known as the Sheltie, is a breed of herding dog. They are small to medium dogs, and come in a variety of colors, such as sable, tri-color, and blue merle.he breed was formally recognized by The Kennel Club in 1909. The Shetland Sheepdog's early history is not well known. Although of obscure origin, the sheltie is probably a descendant of small specimens of the Scottish Collie and the King Charles Spaniel.