Gunky (adjective)

1. Sticky, dirty, or thick with a viscous substance.
2. Having a thick, sticky consistency.

Origin:

The origin of the word "gunky" is uncertain, but it has been used in english language since the early 20th century.

Examples:

1. The gunky substance was hard to remove from the surface.
2. The gunky oil had formed a thick layer on top of the water.
3. The gunky texture made it hard to eat the food.
4. The gunky residue was left on the spoon.
5. The gunky material had to be scraped off the surface.