Definition of as clear as mud
- The explanation was as clear as mud.
: bright, luminous
: free from mist, haze, or dust
: in a clear manner
: all the way
: to make clear or translucent
: to free from pollution or cloudiness
: to free from accusation or blame : exonerate, vindicate
: a clear space or part
: a high arcing shot over an opponent's head in badminton
: a slimy sticky mixture of solid material with a liquid and especially water
: abusive and malicious remarks or charges
: to make muddy or turbid
: to treat or plaster with mud
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