You didn't do it correctly. You had part of the famous "left wing response" to anybody that doesn't think the way of the collective. You meesed up on the unbelieveable part though. The great ones on the LT don't use that.
Just look to the liberal thread to see how it's done properly and make sure you study the work of some of the "masters" over there. You have to add the proper "smilies" that convey the message that only you and people like you are the masters of truth and intelligence. Your intent must be to make that offending poster feel stupid and his opinion worthless. Here's how it's done and I'll give you an example below.
Disneyfan67: I think that the current President is a decent man and there's no real proof that he went into Iraq for oil or to enrich Haliburton.
Leftwing poster: I see another rightie is drinking his koolaid!
You just can't make this stuff up!
That's pretty close to how it's done but you really need to feel snarky and mean at the time when you do it. You can mix it up a little and throw in a few more jabs, but don't over due it and lose the affect of the original tag line.
I hope I was able to help and be sure to check out the Liberal thread or any of the political threads. You might have better luck on the LT because most political threads get locked after 10 pages of insults. Good luck and good insulting!