blow-by-blowa ,blow-by-,blow ac'count, de'scription, etc.1.■an account, description, etc. in which all the details of an event are told in the order in which they happened﹙按照事情发生的顺序给以的﹚详尽的叙述﹙或描述等﹚:He gave us a blow-by-blow account of everything he had done that day. 他把他那天所干的事情一五一十地告诉了我们。