Interesting! I think nearly all contemporary British English speakers associate it with cigarette butts, though. See http://www.oxforddictionaries.com/definitio

Interesting! I think nearly all contemporary British English speakers associate it with cigarette butts, though. See http://www.oxforddictionaries.com/definition/english/fag-end http://www.oxforddictionaries.com/definition/english/fag-end and the Collins entry at http://www.thefreedictionary.com/fag+end http://www.thefreedictionary.com/fag+end .