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Region: General | Usage example: The new evidence only muddied the waters for the jury.

Muddy the waters

Meaning

Confuse an issue intentionally or accidentally.

Usage

Used when someone introduces ambiguity.

Origin & History

Origin notes can vary by region and source; this page gives the commonly reported explanation and usage context.

Metaphor from fishing or farming where muddy water obscures vision.

Appears in 20th-century editorial writing.