( BrE , informal , disapproving ) to do sth, especially to a machine, so that it does not work correctly
SYN mess about / around :
Who's mucking around with my radio?
( BrE , informal , disapproving ) to do sth, especially to a machine, so that it does not work correctly
SYN mess about / around :
Who's mucking around with my radio?
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005