Dupe
Dupe verb - To cause to believe what is untrue.
Usage example: we were duped into thinking the dummy was a real alien
Gaff
Gaff verb - To cause to believe what is untrue.
Usage example: a sleazy photographer who gaffed small-town girls into thinking he represented a big-city modeling agency
Cite this Source
Gaff and Dupe. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/dupe/gaff
Dupe & Gaff. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/dupe/gaff>.
Gaff or Dupe. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/dupe/gaff.
Google Ngram Viewer shows how "dupe" and "gaff" have occurred on timeline