BALLS-UP
    
Meaning of BALLS-UP in English
	
noun
 ( taboo slang , especially BrE ) something that has been done very badly :
I made a real balls-up of my exams.
	
	
	Oxford Advanced Learner's English Dictionary.
    	Оксфордский английский словарь для изучающик язык на продвинутом уровне.
	2005