JFK verb 3noun 1forms 3 verb3 •(slang) To put to death; to assassinate, especially for political reasons.I am not saying choosing McCain would necesarrily^([sic]) lead to Kerry getting JFKed but Democratic presidential runners need to be aware of the problem. — 2004 •(slang) To hold similar political beliefs or behave in a similar manner to John F. Kennedy.He could've JFKed all the overweight babes he wanted to and that's that. — 2010 •(slang) To conduct research about the assassination of John F. Kennedy.This may seem a little presumptious, but I feel that this group is pretty much JFKed out. — 1991 noun1 •A half-dollar coin in honor of president John F. Kennedy. formsJFKed · JFKing · JFKs