From Longman Dictionary of Contemporary Englishoverkillo‧ver‧kill /ˈəʊvəkɪl $ ˈoʊvər-/ noun [uncountable] TOO/TOO MUCHmore of something than is necessary or desirable More television coverage of the election would be overkill.
Examples from the Corpus
overkill• Public concern about the fate of the planet suffers from overkill.• Take it easy for you're in danger of going overkill and boring people rigid with your long winded tales.• Of course, it's a serious disaster, but some of these sensational newspaper reports are just overkill.• The coverage of the trial is a clear example of media overkill.• It had made the fatal error of overkill.• The Pro Q really gives some interesting tonal variations to the sounds generated by the preamp but it does smack of overkill.• It is the blatant political overkill of their foes, in fact, that may save the First Couple from themselves.• Some fear that if Mr Mieno delays much longer, he risks overkill.• Animators now face a dilemma of technology overkill.• Many felt that the money spent amounted to overkill, and that a cheaper, less glossy advertising campaign would have been just as effective. 