from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Alternative spelling of rock bottom.
- v. to fall to the lowest possible level
from The Century Dictionary and Cyclopedia
- n. A stratum of rock which forms a bottom, as for a well or a foundation: also used attributively, and colloquially, in a figurative sense: as, rock-bottom figures, or a rock-bottom price.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. well below normal (especially in price)
Sorry, no etymologies found.