cordon bleu
adj[usu attrib 通常作定语]
(French 法) (of a cook, dish, etc) of the highest standard of skill in cooking, esp classical French cooking (指厨师、 菜肴等)第一流手艺的(尤指法国传统烹饪)
cordon bleu cuisine 第一流名厨所治佳肴.
and there is a very firm rule that the bank has no right or authority to pay out a customer's money on a cheque on which its customer's signature has been forged.