[ guhk, goo k ]
/ gʌk, gʊk /

noun Informal.

slime or oozy dirt: the guck in a stagnant pond.
any oozy, sticky, or slimy substance: a can of guck to patch the roof.


Also gook.

Origin of guck

1945–50; perhaps blend of goo and muck Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for guck

  • When this guck gets out into the air it hardens like cement.

    The Native Soil|Alan Edward Nourse

British Dictionary definitions for guck


/ (ɡʌk, ɡʊk) /


slimy matter; gunk

Word Origin for guck

C20: perhaps a blend of goo and muck
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