Definitions

1. noun

A person or thing that sputters, especially a person who stutters or speaks in a spasmodic or irregular manner.

“The comedian was a skilled sputterer, using his stutter to add humor to his act.”

2. noun

A device that emits sparks or a weak electrical discharge, often in a sputtering or irregular manner.

“The old spark plug was a sputterer, causing the engine to misfire and lose power.”