Definition from Wiktionary, the free dictionary
See also -góó
- Rhymes: -uː
Etymology 1 
- (uncountable, informal) Any semi-solid or liquid substance; especially one that is sticky, gummy or slippery; frequently of vague or unknown composition, or a bodily fluid.
- I stepped in some goo and had a terrible time getting the sticky stuff off my shoes.
- Excessive, showy sentimentality
- When dad couldn't stand the goo anymore, he stopped Tommy's tearful goodbye from the Swedish au-pair Matts, firmly smacking the boys' pants and grumbling "Now stop the goo or I'll give each of you a reason to cry!"
Derived terms 
sticky or gummy semi-solid or liquid substance
Etymology 2 
goo (plural goos)
- An example of baby talk.
- The infant's goos and gahs were endearing.
See also 
- “goo” in Douglas Harper, Online Etymology Dictionary (2001).
- Webster's Seventh New Collegiate Dictionary, Springfield, Massachusetts, G.&C. Merriam Co., 1967
Germanic, of uncertain origin
goo ? (??? please provide the plural!, ??? please provide the diminutive!)
- An alternative form of gouw 'region'
- The board game go
From Old Irish guth (“voice, sound, word, vowel”).
|Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.
Middle English