blackstuff
Proposed by a contributor, not yet supported by evidence.
Meaning · English
Tarmac.
Register: slang
Examples
I continue my climb along the road that once was dirt and pebbles but now is freshly paved with blackstuff.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “blackstuff” mean?
Tarmac.
Is “blackstuff” formal or informal?
blackstuff is generally slang.