The Collaborative International Dictionary of English v.0.48:

Nobby \Nob"by\, a. [From 2d Nob.]
   Stylish; modish; elegant; showy; aristocratic; fashionable.
   [Slang]
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

80 Moby Thesaurus words for "nobby":
   OK, ace-high, bad, bang-up, bonzer, boss, braw, bully, but good,
   chic, classy, clothes-conscious, cool, corking, cosmopolitan,
   crackerjack, dandy, dapper, dashing, delicious,
   dressed to advantage, dressed to kill, ducky, elegant, exquisite,
   fab, fine and dandy, gear, genteel, great, groovy, heavy, hot,
   hunky-dory, jam-up, jaunty, just dandy, keen, marvy, mean, natty,
   neat, nifty, okay, out of sight, peachy, peachy-keen, posh,
   recherche, ripping, ritzy, rum, scrumptious, sharp, slap-up, sleek,
   smart, smashing, smug, snazzy, soigne, soignee, solid,
   something else, sophisticated, spiffing, spiffy, spruce, stunning,
   style-conscious, swank, swanky, swell, tough, tricksy, trig, trim,
   well-dressed, well-groomed, wizard