jeu d'e·sprit 
(zhœ dĕs-prē)
(zhœ dĕs-prē)n. pl. jeux d'esprit (zhœ)
A work of light playfulness or wit, especially in literature.
[French, play of the mind : jeu, play, game (from Old French gieu, from Latin jocus, joke; see JOKE) + de, of + esprit, mind; see ESPRIT.]