Source : Webster's Revised Unabridged Dictionary (1913)

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

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.]

            Two eagles had a conflict, and bickered together.
                                                  --Holland.

   2. To contend in petulant altercation; to wrangle.

            Petty things about which men cark and bicker.
                                                  --Barrow.

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

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

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

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

   3. A wrangle; also, a noise,, as in angry contention.

Source : WordNet®

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