( BrE , informal ) to do sth badly; to make a mess of sth
MAKE A PIG'S EAR (OUT) OF STH
Meaning of MAKE A PIG'S EAR (OUT) OF STH in English
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005