- (uncountable, informal) Dirt or grime; any vague, messy, or unknown substance.
- I washed all the gunk off the light fixture, and found that it was white, not brown.
- (uncountable) A subculture of 21st century American males, combining elements of modern gothic culture with punk rock.
- (countable) A member of the gunk subculture.
dirt or grime; any vague or unknown substance