All backstabber synonyms

noun backstabber

• stool pigeon — a pigeon used as a decoy.
• deep throat — an anonymous source of secret information
• judas — the fourth son of Jacob and Leah. Gen. 29:35.
• deserter — A deserter is someone who leaves their job in the armed forces without permission.
• double agent — a person who spies on a country while pretending to spy for it.
• informer — a person who informs against another, especially for money or other reward.
• quisling — a person who betrays his or her own country by aiding an invading enemy, often serving later in a puppet government; fifth columnist.
• snake in the grass — a treacherous person, especially one who feigns friendship.
• defector — A defector is someone who leaves their country, political party, or other group, and joins an opposing country, party, or group.
• brutus — Lucius Junius (ˈluːʃəs ˈdʒuːnɪəs). late 6th century bc, Roman statesman who ousted the tyrant Tarquin (509) and helped found the Roman republic
• creep — When people or animals creep somewhere, they move quietly and slowly.
• pitfall — a lightly covered and unnoticeable pit prepared as a trap for people or animals.
• skunk — a small North American mammal, Mephitis mephitis, of the weasel family, having a black coat with a white, V -shaped stripe on the back, and ejecting a fetid odor when alarmed or attacked.
• snake — any of numerous limbless, scaly, elongate reptiles of the suborder Serpentes, comprising venomous and nonvenomous species inhabiting tropical and temperate areas.
• trap — a ladder or ladderlike device used to reach a loft, attic, etc.
• villain — a cruelly malicious person who is involved in or devoted to wickedness or crime; scoundrel.
• viper — any of several venomous Old World snakes of the genus Vipera, especially V. berus, a small snake common in northern Eurasia.
• rat fink — fink (defs 3, 4).
• pandora's box — a source of extensive but unforeseen troubles or problems: The senate investigation turned out to be a Pandora's box for the administration.