backstabber

(redirected from Backstabber (disambiguation))

back·stab

 (băk′stăb′)
tr.v. back·stabbed, back·stab·bing, back·stabs
To disparage or criticize (someone), usually when that person is absent.

back′stab′ber n.

backstabber

(ˈbækˌstæbə)
n
someone who attacks another deceitfully, behind his or her back