To mix up or confuse something in a disorganized or untidy way. He managed to muddle the papers on his desk, making it difficult to find the report.
To bring into a disordered or confusing state. The unexpected news muddled her thoughts, leaving her unsure of what to do next.
To achieve a result or progress in a confused or disorganized manner. Despite the lack of a clear plan, they managed to muddle through the project and complete it on time.
To crush ingredients such as fruit or herbs in the bottom of a glass to release their flavor when preparing a drink. The bartender muddled the mint leaves with sugar before adding the rum.
To think or act in a confused or aimless way. She muddled about for hours without making any real progress.
To make (a liquid) turbid or muddy by stirring up sediment. The oars muddled the clear lake water near the shore.