from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A bachelor.
- intransitive v. To live alone and keep house as a bachelor.
- idiom bach it To bach.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A holiday home, usually small and near the beach, often with only one or two rooms and of simple construction.
- v. To live apart from women, as with the period when a divorce is in progress (compare bachelor pad).
Short for bachelor.(American Heritage® Dictionary of the English Language, Fourth Edition)
Probable shortening of bachelor (Wiktionary)