Definition of play or keep one's cards close to one's chest or North American vest in English:
informal Be extremely secretive and cautious about one’s intentions: the less skilled negotiator feels vulnerable and is more likely to keep his cards close to his chest
More example sentences
- So far, the special prosecutor has kept his cards close to his chest.
- He keeps his cards close to his vest.
- Who supports the program, who wants to phase it out, and who's keeping their cards close to their vest, trying to figure which way the wind will blow?