the last part or very end of something: the fag end of a rope.
the unfinished end of a piece of cloth; remnant.
When Does Summer Really End?So when the rest and relaxation is shooed away for cooler days and the start of school, it’s easy to forget that the summer season is far from over.
Origin of fag end
First recorded in 1605–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for fag end
the last and worst part, esp when it is of little use
British informal the stub of a cigarette
Word Origin for fag end
C17: see fag ²
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012