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goop ‎(usually uncountable, plural goops)

  1. (informal, usually uncountable) A thick, slimy substance; goo.
    • 2014 December 23, Olivia Judson, “The hemiparasite season [print version: Under the hemiparasite, International New York Times, 24–25 December 2014, p. 7]”, in The New York Times[1]:
      [] The flesh [of the mistletoe berry] is sticky, and forms strings and ribbons between my thumb and forefinger. For the mistletoe, this viscous goop – and by the way, viscous comes to English from viscum – is crucial. The stickiness means that, after eating the berries, birds often regurgitate the seeds and then wipe their bills on twigs – leading to the seeds' getting glued to the tree, where they can germinate and begin the cycle anew.
  2. (countable, informal, derogatory, dated) A silly, stupid, or boorish person.

Derived terms[edit]


  • goop” in Unabridged, v1.0.1, Lexico Publishing Group, 2006.
  • Oxford English Dictionary, 2nd ed., 1989.
  • Random House Webster's Unabridged Electronic Dictionary, 1987–1996.