说长道短 [- chánɡ dào duǎn]indulge in idle gossip; backbite people; gossip about people behind their backs; gossip idly; make captious comments; random talk; speak ill of a person who is absent:
•¶ 在她身上找不出一点让人家说长道短的地方。 There was not a single thing about her that one could find fault with.