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Synonyms

goop

1 American  
[goop] / gup /

noun

Informal.
  1. a bad-mannered or inconsiderate person; clod; boor.


goop 2 American  
[goop] / gup /

noun

Slang.
  1. a viscous or sticky substance; goo.


goop British  
/ ɡuːp /

noun

  1. a rude or ill-mannered person

  2. any sticky or semiliquid substance

"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

Other Word Forms

  • goopy adjective

Etymology

Origin of goop1

Expressive coinage, apparently first used by Gelett Burgess in his book Goops and How to Be Them (1900)

Origin of goop2

1955–60; expressive coinage akin to glop, gook 1, etc.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Two problems: At the time, renewable energy cost too much to make it affordable, and adding water usually turns quicklime into an unwieldy goop.

From The Wall Street Journal • Mar. 27, 2026

Duck à l’orange has a reputation as an archaic 1970s atrocity owing to American cooks bastardizing what should be a glistening garnish into a sickly-sweet goop.

From Salon • Nov. 1, 2025

In the distance, a white-tailed eagle soared in the clear sky, and Anne Günther, the veterinarian leading the project, smiled as she pointed to plaques of white goop staining the grass: fresh eagle feces.

From Science Magazine • Sep. 26, 2023

Train cars on the tunnel’s custom-built rail line carried the muck to a drop shaft in Ballard, where a crane with a clamshell bucket grabbed the goop.

From Seattle Times • Jun. 27, 2023

I hold up a corner bit of postcard that’s covered in red goop.

From "South of Somewhere" by Kalena Miller