DCHP-1 Online
shaganappi cayuse 
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 pony
- 1938 . . . between these two places there streamed a constant caravan of wagons drawn by shagganapi cayuses. . . .
- 1953 A shaganappi cayuse and rider broke through the willow thicket, splashed recklessly across the creek, and galloped up to him.
- 1938 . . . between these two places there streamed a constant caravan of wagons drawn by shagganapi cayuses. . . .