DCHP-1 Online
shaganappi pony 
n. originally, a wild pony, a mustang; later generalized in the West as a name for any horse, often with a derogatory or contemptuous connotation.
See also: cayuse ((n.)) shaganappi ((n.)) (def. 3) shaganappi cayuse shag pony
- 1902 In place of the ox sometimes was a "shagganippy" pony, raw and unkempt, which the imps lashed without mercy or the slightest inconvenience to the horse.
- 1909 The stage coach, the Red River cart, and the shaganappi pony are things of the past, and several railways with richly furnished trains connect St. Paul and Minneapolis with the City of Winnipeg.
- 1941 Shaganappie Pony. A small under-size horse, generally with the harness the last word in knots, hitches and splices. . . .
- 1962 A "cayuse" is an Indian pony, also called a "shagnappi" (literally, common or ordinary); this word is, however, usually applied to rawhide.
- 1902 In place of the ox sometimes was a "shagganippy" pony, raw and unkempt, which the imps lashed without mercy or the slightest inconvenience to the horse.