The Collaborative International Dictionary of English v.0.48:

Bicker \Bick"er\, n. [See Beaker.]
   A small wooden vessel made of staves and hoops, like a tub.
   [Prov. Eng.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bicker \Bick"er\, v. i. [imp. & p. p. Bickered; p. pr. & vb.
   n. Bickering.] [OE. bikeren, perh. fr. Celtic; cf. W. bicra
   to fight, bicker, bicre conflict, skirmish; perh. akin to E.
   beak.]
   1. To skirmish; to exchange blows; to fight. [Obs.]
      [1913 Webster]

            Two eagles had a conflict, and bickered together.
                                                  --Holland.
      [1913 Webster]

   2. To contend in petulant altercation; to wrangle.
      [1913 Webster]

            Petty things about which men cark and bicker.
                                                  --Barrow.
      [1913 Webster]

   3. To move quickly and unsteadily, or with a pattering noise;
      to quiver; to be tremulous, like flame.
      [1913 Webster]

            They [streamlets] bickered through the sunny shade.
                                                  --Thomson.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bicker \Bick"er\, n.
   1. A skirmish; an encounter. [Obs.]
      [1913 Webster]

   2. A fight with stones between two parties of boys. [Scot.]
      --Jamieson.
      [1913 Webster]

   3. A wrangle; also, a noise,, as in angry contention.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bicker
    n 1: a quarrel about petty points [syn: bicker, bickering,
         spat, tiff, squabble, pettifoggery, fuss]
    v 1: argue over petty things; "Let's not quibble over pennies"
         [syn: quibble, niggle, pettifog, bicker,
         squabble, brabble]