Definition of guck in English:

guck

Line breaks: guck
Pronunciation: /ɡʌk
 
/

noun

[mass noun] North American informal
  • A slimy, dirty, or otherwise unpleasant substance: he got mud and cow guck all over his white jersey
    More example sentences
    • Run the air-conditioner, that can filter some of that guck out - that's a scientific term.
    • It was easy to get away from him now, and when I saw his face with that creamy guck stuck to it I forgot about being scared and wanted to laugh.
    • The strips gave me what seemed to be amazing initial results, but they pulled out less and less guck with repeated use.

Origin

mid 20th century: possibly a blend of goo and muck.

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