Dee

subs. (vagrants’).—1.  A pocketbook or reader. For synonyms, see LEATHER.

  2.  (common).—A detective; also ’TEC (q.v.). Cf., DEEKER, and for synonyms, see NARK.

  1886.  Graphic, 30 Jan., p. 130, col. 1. A detective is known as a DEE and a teck; the former is principally used by tramps and gipsies, and is properly D, the initial letter of the word.

  3.  (common).—See D, sense 2.