from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Chiefly British Slang A rowdy, aggressive, or violent young man.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A person who engages in antisocial behavior/behaviour and/or drunkenness.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a cruel and brutal fellow
Alteration of boy (spelled backward).(American Heritage® Dictionary of the English Language, Fourth Edition)
Backslang for boy. (Wiktionary)