If people or things are in a muddle, they are in a state of confusion or disorder. My thoughts are all in a muddle a general muddle of pencils and boxes = mess
informal terms for a difficult situation; "he got into a terrible fix"; "he made a muddle of his marriage"
If you muddle things or people, you get them mixed up, so that you do not know which is which. Already, one or two critics have begun to muddle the two names = mix up, confuse Muddle up means the same as muddle. The question muddles up three separate issues He sometimes muddles me up with other patients. + muddled up mud·dled up I know that I am getting my words muddled up