greeny

Greenfinch \Green"finch`\, n. (Zool.)
   1. A European finch ({Ligurinus chloris}); -- called also
      {green bird}, {green linnet}, {green grosbeak}, {green
      olf}, {greeny}, and {peasweep}.
      [1913 Webster]

   2. The Texas sparrow ({Embernagra rufivirgata}), in which the
      general color is olive green, with four rufous stripes on
      the head.
      [1913 Webster]
    

69 Moby Thesaurus words for "greeny":
      apprentice, babe, baby, beginner, boob, catechumen, chump, cinch,
      credulous person, cull, dabbler, deb, debutant, dilettante, dunce,
      dupe, easy mark, easy pickings, entrant, fall guy, fish, fledgling,
      fool, freshman, gobe-mouches, greener, greenhorn, gudgeon, gull,
      ignoramus, illiterate, illiterati, infant, innocent, know-nothing,
      leadpipe cinch, learner, lowbrow, middlebrow, monkey, neophyte,
      nestling, newcomer, no scholar, novice, novitiate, patsy, pigeon,
      plaything, prize sap, probationer, puddinghead, pushover,
      raw recruit, recruit, rookie, sap, saphead, schlemiel,
      sitting duck, stooge, sucker, tenderfoot, toy, trainee,
      trusting soul, tyro, unintelligentsia, victim