A gooey mass is a type of substance that is thick, viscous, and often sticky. The term can be used to describe a variety of substances, from food items like melted cheese to industrial products like petroleum jelly. Four words that can be used to describe a gooey mass are GUNK, GOB, BLOB, and GLOP. GUNK is a slang term for a sticky, slimy substance, while GOB is a word for a lump or BLOB of something. BLOB is another word for a lump or drop of a thick liquid, and GLOP is a slang term for a messy, sticky substance.