A smug self centered narcissistic person is an immediate turn off. They are not that rare either.
Yuck. I have to agree with several of those. Tobacco chewing, bad teeth, and/or hairy back. Sorry lady, even big tits aren’t going to make up for it.
If you got to know me., you would never utter that phrase again my dear. 
I have dipped Skoal off and on since I was a teenager. I don’t spit, I swallow which helps with the cleanliness factor. I also dip in a way that almost no one can tell. I have gotten caught in a surprise make-session that I couldn’t turn down and they never knew. I can also dip and eat and dip and chew gum and my teeth are white and shiny.
I know that when I put it that way it sounds really hot but I can understand your earlier misconceptions. My date to my Senior year prom (a very attractive female) shared a can of Copenhagen with me that night (although unfortunately we didn’t share much else). In summary guys that dip in the right way are hot and sharing and caring. You only noticed the brutish ones that can’t add the charm and skills to make it an aphrodisiac.
I feel the same way about non-smokers. I’ve done it, but it was no picnic. I’m so glad I married a smoker!
I do all my trolling for boys online, so the best filter for me is bad spelling and punctuation. I know a lot of people (myself included) who have bad spelling maybe in IM or even in quick emails, but if you are putting thought into something that’s going to be posted for all the world to see, and you can’t spell stuff correctly or be bothered to look it up, I’m not in to you.
Sense of humor does go a long way, though.
Hi. I write for a living. 
[sub]Okay, I write computer manuals, and I put a lot of pictures in them, but still…[/sub]
“I’m a princess/diva” syndrome
Stupidity
Closed-mindedness
Superficiality
Immaturity
and so on…
Online: Overuse of exclamation points. Hell, any use of exclamation points.
There are so many immediate turnoffs that you may as well ask me what’s not an immediate turnoff. The list is much shorter.
Religious zealotry. Interestingly, the fact that my current partner-in-life-and-lesbian-sin is a “recovering Catholic” is one of the things that attracted me to her. To be able to have dug herself out from underneath all of that crap to which her large, German, North Dakotan family still very much lives by…and to have come out intact, empowered, self-assured, and a fountain of academic theological knowledge is something I find extremely sexy and fascinating.
Smoking is the most obvious and fastest. But really, any kind of addiction does not bode well. Whether it’s alcohol, fashion, celebrity news, or online gaming.
A lack of knowing when not to be talking. Every quiet moment does not have to be filled with words.
The biggest challenge they must face is me knowing that there’s a possibility that they will be an example to my children. So if there’s anything there that I wouldn’t accept in my kids, it’s been fun, but I don’t think it’s going to work out.
Turn-offs:
Arrogance
Morbid Obesity
Willfull Ignorance
If you had told me this morning that I would come across that phrase today and be grossed out, I’d have laughed in your face.
Blech.
As to the original dip ring in question: don’t immediately rule it out: it could be Ice Breakers. 
A penis.
I can usually get around most things if other factors are there – if we make each other laugh, I can forgive a lot – but I can’t kiss a person with bad breath.
A little username/poster combo stereotype going on here…
I’d have to say bad teeth/breath. I can close my eyes and pretend I’m masturbating, sure, but I like to keep them open.
That’s so unfair!!!
“Like. Like. Like. Like”…etc. Drives me up a fuckin’ wall.
Another vote for stupidity and another for a penis, and a stupid penis would be the basis for a suicide attempt.