hornswoggle |ˈhôrnˌswägəl|verb [ trans. ] (usu. be hornswoggled) informalget the better of (someone) by cheating or deception :you mean to say you were hornswoggled?
ORIGIN early 19th cent. (originally U.S.): of unknown origin.
Colorful word, but not commonly used, probably because there are so many lively synonyms: hoodwink, bamboozle, flimflam, sucker, and more.