Definition of "ducky"

ducky¹

/ˈdʌki/

adjective
comparative duckier, superlative duckiest
1. Resembling or characteristic of a duck.
  Quotations
  A barrage of very ducky kazoo blats filled the air.
  2016, Helaine Becker, Let Sleeping Dogs Lie

ducky²

/ˈdʌki/

noun
plural duckies
1. (childish) A duck (aquatic bird), especially a toy rubber duck.
  Quotations
  Do little things for your Inner Child, like taking bubble baths. Invite a rubber ducky to play with you...
  1990, Donna LeBlanc, You can't quit until you know what's eating you

ducky³

/ˈdʌki/

noun
plural duckies
1. An affectionate pet name.
2. (slang, obsolete, chiefly in the plural) A woman's breast.

ducky⁴

/ˈdʌki/

adjective
comparative more ducky, superlative most ducky
1. (slang) Darling, charming, cute.
2. (slang, dated) Great; going well; proceeding in an eminently agreeable fashion.
  Quotations
  Isn't this the duckiest little leather skirt you ever saw?
  1930, Mickey Mouse newspaper comic
  Fortunately, she had bragged to everybody about her ducky first-floor apartment in the perfectly darling three-story red-brick.
  1942, James Thurber, The Catbird Seat