Swank

Adjective

 * 1)  Fashionably elegant.
 * I went to a swank party last night.

Noun

 * 1) A fashionably elegant person.
 * He's such a swank.
 * 1) Ostentation.
 * The parvenu was full of swank.
 * 1) * 1925, F. Scott Fitzgerald, The Great Gatsby, chapter 1,
 * Not even the effeminate swank of his riding clothes could hide the enormous power of that body--he seemed to fill those glistening boots until he strained the top lacing and you could see a great pack of muscle shifting when his shoulder moved under his thin coat.

Verb

 * 1) To swagger, to show off.
 * Looks like she's going to swank in, flashing her diamonds, then swan out to another party.

Thesaurus
Babylonian, Corinthian, airs, awe-inspiring, awful, barbaric, bounce, brave show, braw, chic, chichi, classy, clothes-conscious, cock, cosmopolitan, dapper, dashing, deluxe, dressed to advantage, dressed to kill, elaborate, elegant, exquisite, extravagant, fancy, fine, flamboyant, genteel, glorious, grand, grandiose, highfaluting ways, imposing, impressive, jaunty, lofty airs, look big, luxurious, magnificent, majestic, natty, neat, nifty, nobby, noble, ostentatious, palatial, peacock, peacockery, peacockish, peacockishness, peacocky, plush, pontificate, posh, prance, pretensions, pretentious, princely, proud, put on, put on airs, put on side, recherche, ritz it, ritzy, sharp, side, sleek, smart, smug, snappy, snazzy, soigne, soignee, sophisticated, spiffy, splashy, splendacious, splendid, splendiferous, spruce, stalk, stately, strut, strutting, style-conscious, sumptuous, superb, superfancy, superfine, swagger, swaggering, swanky, swash, swashbuckle, swashbucklering, swashbucklery, swashbuckling, swell, swell it, swish, tony, trendy, tricksy, trig, trim, vain pretensions, vaporing, well-dressed, well-groomed, with-it

Etymology
Perhaps from swanky:, or perhaps from an root, related to the  swank and the  swanken, modern  schwanken ("to sway").

Anagrams

 * knaws
 * wanks