SPLUTTER

[verb] - (of a person) to speak in a quick and confused way, producing short unclear noises because of surprise, anger, etc., or (of a person or thing) to make a series of noises similar to thisThe old gentleman in the corner of the carriage was spluttering with indignation at something he was reading in his newspaper. [I]"But...er...when...um...how?" he spluttered. [+ speech]She took too big a gulp of whisky and started to cough and splutter. [I]The bacon in the frying pan was spluttering and spitting fat. [I]