( informal ) to annoy or upset sb or a group of people :
The senator's speech ruffled a few feathers in the business world.
( informal ) to annoy or upset sb or a group of people :
The senator's speech ruffled a few feathers in the business world.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005