Akademik

М-292
РАЗВОДИТЬ МУРУ slang VP subj: human often infin with хватит, перестань etc and in questions) to talk about, pay too much attention to, or devote too much time to insignificant matters
X муру разводит - X is wasting his time on that nonsense (garbage).

Большой русско-английский фразеологический словарь. — М.: ACT-ПРЕСС КНИГА. . 2004.