To spit, or eject saliva from the mouth in small or scattered bits; hence, to throw out moisture in small detached parts and with small explosions; emit small particles, as of grease, soot, etc., with some crackling or noise.To speak so rapidly and vehemently as to seem to spit out the words, as in excitement or anger.To emit forcibly in small or scattered portions, as saliva, flame, etc.; spit out noisily.To emit in small particles or amounts with slight explosions: as, the candle sputters smoke; a green stick sputters out steam.To utter rapidly and with indistinctness; jabber.n. The act of sputtering.n. That which is thrown off or ejected in sputtering.n. The noise made by a person who or a thing which sputters; hence, bustle; ado; excited talk; squabble.