ПУХ И (ДА) ПЕРЬЯ ЛЕТЯТ/ПОЛЕТЯТ (от кого) collVPsubj.usu. pres or pfv fut) s.o. gets soundly defeated (in an argument, quarrel etc): от X-a пух да перья полетят = X will take a beating
X will get his lumps
X will get the stuffing knocked out of him.
Большой русско-английский фразеологический словарь. — М.: ACT-ПРЕСС КНИГА.
С.И. Лубенская.
2004.