| 1. | Slang. | a. | a deposit or coating of refuse or of an impure or alien substance; muck. | | b. | a filthy, repulsive, or contemptible person. | | c. | something that is worthless, objectionable, or contemptible. | | d. | prevarication, exaggeration, or flattery. | | e. | a nonspecific, imaginary, or vaguely defined disease or disorder of the body: jungle crud. | | f. | any unpleasant external ailment, disorder, or the like, as a skin rash. | | g. | venereal disease, esp. syphilis. | |
[kruhd] 
noun, verb, crud⋅ded, crud⋅ding.