from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A boy who sells sand.
- n. A proverbially happy or jolly person.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a young peddler of sand; used now only to express great happiness in `happy as a sandboy'
From sand + boy. (Wiktionary)