The Collaborative International Dictionary of English v.0.48:

Tipple \Tip"ple\, v. t.
   1. To drink, as strong liquors, frequently or in excess.
      [1913 Webster]

            Himself, for saving charges,
            A peeled, sliced onions eats, and tipples verjuice.
                                                  --Dryden.
      [1913 Webster]

   2. To put up in bundles in order to dry, as hay.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tipple \Tip"ple\, n.
   Liquor taken in tippling; drink.
   [1913 Webster]

         Pulque, the national tipple of Mexico.   --S. B.
                                                  Griffin.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tipple \Tip"ple\, n. [Cf. 3d Tip.]
   An apparatus by which loaded cars are emptied by tipping;
   also, the place where such tipping is done.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Tipple \Tip"ple\, v. i. [imp. & p. p. Tippled; p. pr. & vb. n.
   Tippling.] [From tip a small end, or a word akin to it; cf.
   Norw. tipla to tipple, to drip, Prov. E. tip, tiff, tift, a
   draught of liquor, dial. G. zipfeln to eat and drink in small
   parts. See Tip a point, and cf. Tipsy.]
   To drink spirituous or strong liquors habitually; to indulge
   in the frequent and improper used of spirituous liquors;
   especially, to drink frequently in small quantities, but
   without absolute drunkeness.
   [1913 Webster]

         Few of those who were summoned left their homes, and
         those few generally found it more agreeable to tipple
         in alehouses than to pace the streets.   --Macaulay.
   [1913 Webster]

WordNet (r) 3.0 (2006):

tipple
    n 1: a serving of drink (usually alcoholic) drawn from a keg;
         "they served beer on draft" [syn: draft, draught,
         potation, tipple]
    v 1: drink moderately but regularly; "We tippled the cognac"
         [syn: tipple, bib]