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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

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.

See Examples For:

The administration is arguing that in the long run, the pool’s new filtration system—“advanced nanobubbler technology,” per the administration—will defeat the green goop outbreaks.

From Slate Jun. 19, 2026

Watching “Live at the Palace,” it’s easy to see why Conan O’Brien once referred to Fleming as “the goop that’s inside of a lava lamp.”

From Los Angeles Times May 27, 2026

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

Chef endorsements are probably doubly important for fake cheese, since people know it today as disappointing goop.

From Salon Aug. 19, 2024

“You asked me to stall your mom when you were going through Mr. X’s laundry. I looked like an idiot and got brown goop on my leg.”

From "Liar & Spy" by Rebecca Stead

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