Entry 4 senses · 2 variants Webster, 1913 Cockhorse · Cock·horse · IPA n. a. 01 n. A child's rocking-horse. 1. A child's rocking-horse. “Ride a cockhorse to Banbury cross.” — Mother Goose. 2. A high or tall horse.[R.] 02 a. Lifted up, as one is on a tall horse. 1. Lifted up, as one is on a tall horse. 2. Lofty in feeling; exultant; proud; upstart. “Our painted fools and cockhorse peasantry.” — Marlowe.