from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having a belly that is yellow or yellowish. Used of certain birds, for example.
- adj. Slang Cowardly.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of an animal or reptile having a yellow underside or belly.
- adj. Uncourageous, cowardly.
from The Century Dictionary and Cyclopedia
- Having the belly yellow, or having yellow on the abdomen: specific in phrase-names of many different animals: as, the yellow-bellied flycatcher, Empidonax flaviventris; the yellow-bellied woodpecker, Sphyropicus varius. See cut under sap-sucker.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. easily frightened
From yellow belly (yellowbelly) (Wiktionary)