Scrapie
The name scrapie is derived from one of the clinical signs of the condition, wherein affected animals will compulsively scrape off their fleeces against rocks, trees, or fences. The disease apparently causes an itching sensation in the animals. Other clinical signs include excessive lip smacking, altered gaits, and convulsive collapse.
Winklepicker
The extremely pointed toe was called the "winkle picker" because in England periwinkle snails, or winkles, are a popular seaside snack which is eaten using a pin or other pointed object to extract the soft parts out of the coiled shell carefully, hence the phrase: "to winkle something out", and based on that, "winklepickers" became a humorous name for shoes with a very pointed tip. Other countries had other humorous names, e.g. in Norway and Sweden they were called "myggjagere/myggjagare", literally "Mosquito hunter". They are still popular in the raggare and rockabilly subcultures. In some parts of the U.S. they are called "roach stompers."