Used when someone is overcome by strong emotions like shock or excitement.

Emotional Reaction

Often used when someone is caught off-guard or is unprepared for a situation.

Unexpected Moments

More common in casual conversation rather than formal speech or writing.

Refers to the malfunctioning of machines, especially those with engines.

Can also describe any device that sputters, not just vehicles.

Implies a distinctive sound made by an object, signaling a potential issue.