decoy-duck
noun1
A duck used to lure wild ducks into a decoy.
2
Broadly, Figuratively One employed to lure others into danger.
- if you give any credit to this jugling rascal, you are worse than simple widgins, and will be drawn into the net by this decoy-duck, this tame cheater.1626 February 1 (licensing date; Gregorian calendar), John Fletcher [et al.], “The Faire Maide of the Inne”, in Comedies and Tragedies […], London: […] Humphrey Robinson, […], and for Humphrey Moseley […], published 1647, →OCLC, Act IV, scene ii: