Longhorn rhymes with:
pronghorn, polkinghorn, pronghorn, bighorn, buckhorn, bullhorn, einhorn, elkhorn, hartshorn, hirshhorn, polkinghorn, pronghorn, schoellhorn, shoehorn, waldhorn, whitehorn
Longhorn sounds like:
langerman, langhorn, langhorne, lohengrin, longshoremen, lunchroom, lungren