MEANING: adverb: Mounted with a leg on each side.
noun: A hobby horse.

ETYMOLOGY: From cock (rooster) + horse, perhaps from the strutting of a rooster. Earliest documented use: 1566.

CORK-HORSE - a child's floating swim-toy in the form of a horse that can be ridden in the water

COCK-HOUSE - medieval jargon for a brothel

CLOCK-HORSE - a model that goes around on a turntable when the clock strikes the hour