Definitions

1. adjective

having the most or the thickest and stickiest consistency of a substance, especially one that is sticky and sweet

“The gooiest marshmallow in the bag was the first to be eaten.”

2. superlative

being the most extreme or pronounced example of something

“He was the gooiest dancer on the dance floor.”

3. noun

the most extreme or pronounced example of a sticky substance

“The gooiest of the three ice cream flavors was the chocolate.”