splutter
verb [ I ] uk/ˈsplʌt.ər/ us/ˈsplʌt̬.ɚ/
（因惊讶、愤怒等）语无伦次地说;发出嘟囔声;发出噼啪声
(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 this
The old gentleman was spluttering with indignation. 那位老先生愤怒地嘟囔着什么。
[ + speech ] "But, er ... when, um, ... how?" he spluttered. “但是，呃……什么时候，嗯……怎样？”他语无伦次地说道。
She took too big a gulp of whisky and started to cough and splutter. 她那一口威士忌喝得太多，开始咳嗽起来，嘴里噗噗地吐着气。