ETYM Old Eng. colt a young horse, ass, or camel, AS. colt; cf. dial. Swed. kullt a boy, lad.
1. A young male horse under the age of four.
2. A young untried person.

ETYM Old Eng. urchon, irchon, a hedgehog, Old Fren. ireçon, eriçon, heriçon, herichon, French hérisson, a derivative from Latin ericius, from er a hedgehog, for her; akin to Greek cher. Related to Herisson.
Poor and often mischievous city child.

Someone who is unimportant but cheeky and presumptuous; SYN. jackanapes, lightweight.

(Used of an ill-mannered child) Impolitely unruly; SYN. brattish.