1 informal a difficult or tricky question or task. 2a person who makes fun of or provokes others in a playful or unkind way. a person who tempts someone sexually with no intention of satisfying the desire aroused. a short introductory advertisement for a product, especially one that does not mention the name of the thing being advertised. Fishing a lure or bait trailed behind a boat to attract fish. an inferior stallion or ram used to excite mares or ewes before they are served by the stud animal.