Definition from Wiktionary, the free dictionary
top-to-bottom (plural top-to-bottoms)
- A piece of graffiti covering the whole height of a railway carriage.
1984, Craig Castleman, Getting Up: Subway Graffiti in New York, page 57:
- Many writers felt constricted painting below the windows of cars and began to expand their pieces upward into top-to-bottoms and lengthwise into end-to-ends.