CURVET, noun

1. In the manege, a particular leap of a horse, when he raises both his fore legs at one, equally advanced, and as his fore legs are falling, he raises his hind legs, so that all his lets are raised at once.

2. A prank; a frolic.

CURVET, verb intransitive

1. To leap; to bound; to spring and form a curvet

2. To leap and frisk.