IPA: /ˈsplʌtərər/
KK: /ˈsplʌtərər/
A person who makes a series of short, explosive sounds while speaking or breathing, often due to excitement or difficulty in expressing themselves.
During the presentation, he became so excited that he turned into a splutterer, struggling to get his words out.
Splutterer → It is formed from "splutter" (originating from a combination of the dialectal word 'splutter', meaning to spit or splash) and "-er" (meaning a person who). A splutterer is a person who splutters, or makes a spitting or sputtering sound, often while speaking.
Think of someone who 'spits' or 'splash' sounds while talking — that's what a splutterer does.