Answer: spluttering

AnswerCrossword Clue
splutteringMake a series of short explosive spitting or choking sounds
splutteringSPLUTTER, to speak rapidly and confusedly
splutteringSpit (something) out from one's mouth noisily and in small splashes
splutteringSay something rapidly, indistinctly, and with a spitting sound, as a result of anger, embarrassment, or another strong emotion