The Collaborative International Dictionary of English v.0.48:

Squabble \Squab"ble\ (skw[o^]b"b'l), v. i. [imp. & p. p.
   Squabbled (-b'ld); p. pr. & vb. n. Squabbling
   (-bl[i^]ng).] [Cf. dial. Sw. skvabbel a dispute, skvappa to
   chide.]
   1. To contend for superiority in an unseemly manner; to
      scuffle; to struggle; to wrangle; to quarrel.
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   2. To debate peevishly; to dispute.
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            The sense of these propositions is very plain,
            though logicians might squabble a whole day whether
            they should rank them under negative or affirmative.
                                                  --I. Watts.
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   Syn: To dispute; contend; scuffle; wrangle; quarrel;
        struggle.
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