adj. phr. , informal Watching or taking part, usually with pleasure, at the end of a struggle; present at the finish. Frank and John have been quarreling for a long time and tonight they are having a fight. Bill says he wants to be in at the kill, because he is Frank's friend.
IN AT THE KILL
Meaning of IN AT THE KILL in English
American idioms English vocabulary. Английский словарь американских идиом. 2012