Source : Webster's Revised Unabridged Dictionary (1913)

Splutter \Splut"ter\, v. i. [imp. & p. p. {Spluttered}; p. pr. &
   vb. n. {Spluttering}.] [Prov. E. splutter, eqivalent to
   sputter. Cf. {Sputter}.]
   To speak hastily and confusedly; to sputter. [Colloq.]
   --Carleton.

Splutter \Splut"ter\, n.
   A confused noise, as of hasty speaking. [Colloq.]

Source : WordNet®

splutter
     n 1: the noise of something spattering or sputtering explosively;
          "he heard a spatter of gunfire" [syn: {spatter}, {spattering},
           {splatter}, {splattering}, {sputter}, {sputtering}]
     2: an utterance (of words) with spitting sounds (as in rage)
        [syn: {sputter}]
     v 1: utter with a spitting sound, as if in a rage [syn: {sputter}]
     2: spit up in an explosive manner [syn: {sputter}, {spit out}]