FLANK of a HORSE
—is the part lying between the last RIB and the HIND QUARTER, reaching from the part of the LOINS nearest the hip-bone, to the bottom of the belly nearest the STIFLE. If a horse is well ribbed up, his flank not hollow, but circularly prominent, and his BACK SHORT, he is then called a "good barrelled horse," and is very seldom deficient in other respects which constitute attraction.