The Collaborative International Dictionary of English v.0.48:

Dink \Dink\, a. [Etymol. uncertain.]
   Trim; neat. [Scot.] --Burns. -- Dink"ly, adv.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

dink \dink\, v. t.
   To deck; -- often with out or up. [Scot.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

dink \dink\, n. [ca. 1985, acronym from double income no kids.]
   either of a married couple who both are employed and have no
   children. The term is often used as the prototype of
   midde-class persons with higher-than-average disposable
   income.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

dink \dink\, n. (Tennis)
   a ball hit softly that falls to the ground just beyond the
   net.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

dink \dink\, n.
   an Asian person, especially a Vietnamese; -- used
   contemptuously, considered disparaging and offensive. [U.S.
   slang]

   Syn: slant, slope. [PJC]

WordNet (r) 3.0 (2006):

DINK
    n 1: a couple who both have careers and no children (an acronym
         for dual income no kids)
    2: a soft return so that the tennis ball drops abruptly after
       crossing the net [syn: drop shot, dink]

The Jargon File (version 4.4.7, 29 Dec 2003):

dink
 /dink/, adj.

    Said of a machine that has the bitty box nature; a machine too small to
    be worth bothering with ? sometimes the system you're currently forced to
    work on. First heard from an MIT hacker working on a CP/M system with 64K,
    in reference to any 6502 system, then from fans of 32-bit architectures
    about 16-bit machines. ?GNUMACS will never work on that dink machine.?
    Probably derived from mainstream ?dinky?, which isn't sufficiently
    pejorative. See macdink.


The Free On-line Dictionary of Computing (30 December 2018):

dink

   /dink/ Said of a machine that has the bitty box nature; a
   machine too small to be worth bothering with - sometimes the
   system you're currently forced to work on.  First heard from
   an MIT hacker working on a CP/M system with 64K, in
   reference to any 6502 system, then from fans of 32 bit
   architectures about 16-bit machines.  "GNUMACS will never work
   on that dink machine."  Probably derived from mainstream
   "dinky", which isn't sufficiently pejorative.

   See macdink.

   [Jargon File]

   (1994-10-31)