In Eastenders Mick Carter refer to wearing a clean 'smother' - only reference I can find is 'strangle and smother' for mother - wondered if it was smothered in dirt - shirt?
Thank you for best answer. I have looked up in Partridge Dictionary of Slang and it says Smother - overcoat UK 1934. Allied to practical sense worn over a pickpockets arm to mask criminal activity.