If 3M management had scolded Silver for making a mistake, colleagues had pooh-poohed the idea or sharing odd findings had been prohibited, then Post-it might never have come to be.

Source: https://business.inquirer.net/431773/the-right-kind-of-wrong

Moreover, McCarthy has pooh-poohed complaints about Santos’ conduct.

Source: https://www.artesianews.com/2132927/editorial-roundup-united-states.html