The Collaborative International Dictionary of English v.0.48:

Kinky \Kink"y\, a.
   1. Full of kinks; liable to kink or curl; as, kinky hair.
      [1913 Webster]

   2. Queer; eccentric; unconventional; crotchety. [Colloq.
      U.S.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

kinky
    adj 1: (used of sexual behavior) showing or appealing to bizarre
           or deviant tastes; "kinky sex"; "perverted practices"
           [syn: kinky, perverted]
    2: (of hair) in small tight curls [syn: crisp, frizzly,
       frizzy, kinky, nappy]
    3: informal terms; strikingly unconventional [syn: far-out,
       kinky, offbeat, quirky, way-out]

Moby Thesaurus II by Grady Ward, 1.0:

98 Moby Thesaurus words for "kinky":
   Bohemian, abnormal, anomalous, arbitrary, beat, bizarre, breakaway,
   capricious, crank, crankish, cranky, crimped, crisp, crisped,
   crispy, crotchety, curled, curly, degenerate, depraved, deviant,
   deviative, different, divergent, dotty, eccentric, erratic,
   exceptional, fanciful, fantasied, fantastic, far out, fey, flaky,
   freakish, free and easy, fringy, frizzed, frizzly, frizzy, funny,
   harebrained, heretical, heterodox, hippie, humorsome, idiocratic,
   idiosyncratic, informal, irregular, kinked, knotted, kooky,
   maggoty, maverick, moody, motiveless, not cricket, not done,
   not kosher, notional, nutty, odd, oddball, offbeat, original,
   outlandish, outre, peculiar, perverted, petulant, queer, quirky,
   screwball, screwy, singular, strange, tangled, temperamental,
   twisted, ultra, unconventional, unfashionable, unique, unnatural,
   unorthodox, unreasonable, unrestrained, vagarious, vagrant, wacky,
   wanton, warped, way out, wayward, weird, whimsical, wiry