from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Informal A thug; a tough.
- n. Informal A difficult problem.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Something that is tough, or difficult.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a particularly difficult or baffling question or problem
- n. an aggressive and violent young criminal
Sorry, no etymologies found.