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See more synonyms for crud on Thesaurus.com
  1. Slang.
    1. a deposit or coating of refuse or of an impure or alien substance; muck.
    2. a filthy, repulsive, or contemptible person.
    3. something that is worthless, objectionable, or contemptible.
    4. prevarication, exaggeration, or flattery.
    5. a nonspecific, imaginary, or vaguely defined disease or disorder of the body: jungle crud.
    6. any unpleasant external ailment, disorder, or the like, as a skin rash.
    7. venereal disease, especially syphilis.
    8. Vulgar.dried semen.
  2. Dialect. curd.
  3. Dialect. clabber.
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verb (used with or without object), crud·ded, crud·ding.
  1. Dialect. to curd.
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Origin of crud

1325–75; Middle English; earlier form of curd

Regional variation note

3. See clabber.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

grime, dirt, smut, slime, muck, scum, dregs, waste, skank

Examples from the Web for crud

Contemporary Examples

Historical Examples

British Dictionary definitions for crud


  1. a sticky substance, esp when dirty and encrusted
  2. an undesirable residue from a process, esp one inside a nuclear reactor
  3. something or someone that is worthless, disgusting, or contemptible
  4. the crud a disease; rot
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  1. an expression of disgust, disappointment, etc
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Word Origin

C14: earlier form of curd
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for crud


"nonsense, rubbish," 1940, U.S. slang; originally 1920s army and college student slang for "venereal disease." Said to be a metathesis variant of curd, which actually makes it an unconscious return to the original Middle English form of that word (see curd). As G.I. name for "disease of any and every sort" it is attested from 1945.

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Online Etymology Dictionary, © 2010 Douglas Harper