The Collaborative International Dictionary of English v.0.48:

Trig \Trig\, v. t. [Cf. Dan. trykke to press, Sw. trycka.]
   To fill; to stuff; to cram. [Obs.] --Dr. H. More.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Trig \Trig\, a. [Formerly written trick, akin to trick to
   dress.]
   Full; also, trim; neat. [Prov. Eng. & Scot.]
   [1913 Webster]

         To sit on a horse square and trig.       --Brit. Quart.
                                                  Rev.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Trig \Trig\, v. t. [See Trigger.]
   To stop, as a wheel, by placing something under it; to
   scotch; to skid.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Trig \Trig\, n. [See Trigger.]
   A stone, block of wood, or anything else, placed under a
   wheel or barrel to prevent motion; a scotch; a skid. [Eng.]
   --Wright.
   [1913 Webster]

WordNet (r) 3.0 (2006):

trig
    adj 1: neat and smart in appearance; "a clean-cut and well-bred
           young man"; "the trig corporal in his jaunty cap"; "a
           trim beard" [syn: clean-cut, trig, trim]
    n 1: the mathematics of triangles and trigonometric functions
         [syn: trigonometry, trig]

Moby Thesaurus II by Grady Ward, 1.0:

50 Moby Thesaurus words for "trig":
   all ataunto, anal, ataunt, braw, bungup and bilge-free, chic,
   classy, clothes-conscious, cosmopolitan, dapper, dashing, dinky,
   dressed to advantage, dressed to kill, elegant, exquisite, genteel,
   jaunty, natty, neat, nifty, nobby, posh, recherche, ritzy, sharp,
   shipshape, sleek, slick, smart, smug, snazzy, snug, soigne,
   soignee, sophisticated, spiffy, spruce, style-conscious, swank,
   swanky, swell, taut, tidy, tight, tricksy, trim, well-cared-for,
   well-dressed, well-groomed