verb (used with object), bad-mouthed, bad-mouth·ing.
- bad sort, a,
- bad taste,
- bad time,
- bad trip,
- bad trot,
Origin of bad-mouth
Examples from the Web for badmouthing
Viacom's billionaire owner wants to know who's badmouthing his girl-band pet project to The Daily Beast.
"abuse someone verbally," 1941, probably ultimately from noun phrase bad mouth (1835), in Black English, "a curse, spell," translating an idiom found in African and West Indian languages. Related: Bad-mouthed; bad-mouthing.