pooh-pooh

1. V-T If someone pooh-poohs an idea or suggestion, they say or imply that it is foolish, impractical, or unnecessary. 輕視; 蔑視; 貶低

In the past he has pooh-poohed suggestions that he might succeed Isaacs. 過去，他對自己或許接替艾薩克斯的說法嗤之以鼻。