Dexter, neocon has two meanings:
Standard definition: So-called Republicans who give themselves this label in order to signify that they are more "modern" and "enlightened" (read: more liberal) than traditional conservatives, who are mockingly derided as "paleocons". Neocons basically agree with Bush on just about everything: are pro-corporation, staunchly support his Iraq debacle, favor open borders, and generally are somewhat to very liberal on moral issues like abortion and affirmative action. Examples: Dubya (best example), Condomloser Lice, Rudy Giuliani, most of the Bush Administration in general.
Secondary definition: A codeword for Jew, or Jewish politician, used by Nazis such as Ron Paul, Pat Buchanan, Joseph Sobran, and Helen Thomas.