from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. Informal To criticize or disparage, often spitefully or unfairly: "those cross-Atlantic aficionados who persistently idolize the British theater and bad-mouth Broadway” ( Benedict Nightingale).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To criticize or malign, especially unfairly or spitefully.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. speak unfavorably about
Calque from Mandinka. (Wiktionary)