Definitionen
1.NounOne who knowingly allows himself or herself to be used for another's profit; a dupe.
2.NounA magician's assistant who pretends to be a member of the audience.
3.NounA straight man.
4.NounA secret informant for police.
5.NounA confederate; a person who is secretly working for the researcher, unknown to the study participant.
6.VerbTo act as a straight man.