backbiter

Definition of Backbiter in English :

one who attacks the reputation of another by slander or libel

WordNet Lexical Database for English. Princeton University. 2010.

Backbiter

verb -bites, -biting, -bit, -bitten or -bit

to talk spitefully about (an absent person)

verb transitive, verb intransitiveWord forms: ˈbackˌbit (ˈbækˌbɪt ; bakˈbitˌ), ˈbackˌbitten (ˈbækˌbɪtən ; bakˈbitˌ'n) or ˈbackˌbit, ˈbackˌbiting

to speak maliciously about (an absent person); slander

v. back·bit (-bĭt′), back·bit·ten (-bĭt′n), back·bit·ing, back·bites

v.tr.

To speak spitefully or slanderously about (another).

v.intr.

To speak spitefully or slanderously about a person.