What does plutter mean?

"Plutter" is not a standard English word. It's likely a misspelling or a made-up word.

If you heard it somewhere, it might be a regional dialect word or a slang term.

Could you provide more context?

* Where did you hear this word?

* What was the context of the conversation?

Knowing more will help me understand what "plutter" might mean in this specific case.