Siffon.—Jewish horse-dealers’ word (spelling in doubt) meaning to run in bids on a greenhorn to boost price of horse.
Slab-Sided.—Flat-ribbed.
Smokes His Pipe.—Lip torn where bridle bit rests.
Smoky Eye.—“A little smoky.” Eye cloudy, whitish, pearly in color, or opaque.
Smooth Mouth.—Cups or marks worn off incisor teeth, indicating great age.
Spavin.—Bony enlargement or exostosis upon lower, inner, front aspect of hock joint.
Speck in Eye.—A small scar of spot, not on pupil, and as a rule, not impairing vision.
Speedy Cutting.—Striking the inside of the hind cannon against the front foot as the hind is brought forward and passes the front foot on the outside in over-reaching when the horse is speeding.
Splay-Footed.—“Nigger-heeled.”
Splint.—A bony growth on course of splint-bone on either side of cannon-bone below the knee.