Goo refers to an unpleasantly sticky substance. It can be described as a thick, sticky substance, often used to describe a messy or adhesive material. Examples of goo include a plastic bag full of goo that can stretch up to four times its size, as seen in a toy, or a substance that is difficult to put out once it is lit, as seen in a hazardous household item.
In informal contexts, goo can also be used to describe a sticky or gloopy substance, similar to glue or putty. It can be used to describe a substance that is difficult to clean or remove, such as mud or a sticky spill.
Some synonyms for goo include glue, putty, and sticky substances, which can be found in a list of related words and phrases on a certain website.
