Colt, v. t. 1. To horse; to get with young. Shak.

2. To befool. [Obs.] Shak.

Colt (?; 110), v. i. To frisk or frolic like a colt; to act licentiously or wantonly. [Obs.]

They shook off their bridles and began to colt.

Colt (?; 110), n. [OE. colt a young horse, ass, or camel, AS. colt; cf. dial. Sw. kullt a boy, lad.] 1. The young of the equine genus or horse kind of animals; -- sometimes distinctively applied to the male, filly being the female. Cf. Foal.

☞ In sporting circles it is usual to reckon the age of colts from some arbitrary date, as from January 1, or May 1, next preceding the birth of the animal.

2. A young, foolish fellow. Shak.

3. A short knotted rope formerly used as an instrument of punishment in the navy. Ham. Nav. Encyc.

Colt's tooth, an imperfect or superfluous tooth in young horses. -- To cast one's colt's tooth, to cease from youthful wantonness. "Your colt's tooth is not cast yet." Shak. -- To have a colt's tooth, to be wanton. Chaucer.