What's the noun for goo? Here's the word you're looking for.
goo
(uncountable, informal) Any semi-solid or liquid substance; especially one that is sticky, gummy or slippery; frequently of vague or unknown composition, slime or a bodily fluid.
“It isn't the sentimental gooeyness of someone who eulogizes over cute bunny-wunnies, but the clear-eyed appreciation of a man who knows the reality of nature.”
“It was simply wonderful, its creamy chocolate gooeyness punctuated by rich coffee.”
“Ultimately, the movie bogs down not merely in the quantity of its talk, but the gooeyness of its self-absorption.”