fag end (also fag-end)

• 1. 

  N-COUNT If you refer to the fag end of something, you mean the last part of it, especially when you consider this part boring or unimportant. (烦人或无关紧要的)末尾 [非正式] [usu sing, N 'of' n]

  例：

  He never had much confidence in his judgement at the fag-end of the working day.

  他向来对自己在快下班那个烦人时段的判断力不报什么信心。