1 general:: Entertain someone or treat someone to a fine meal, as in The company likes to wine and dine visiting scientists. [Colloquial; mid-1800s]
American Heritage Idioms
2 general:: Phrase(s): wine and dine someone to treat someone to an expensive meal of the type that includes fine wines; to entertain someone lavishly. • The lobbyists wined and dined the senators one by one in order to inf luence them. • We were wined and dined every night and given the best hotel accommodations in town.
McGrawhill's American Idioms And Phrasal Verbs