Okay, a topic I can get with!
Actually, I'm quite a negative person so it doesn't take much for me to dislike anyone (lol!) but here's a couple of things that just give me the gags in a bad way.
-Hair in places that are not that hot (i.e. feet, ears, nose, tongue...etc.)
-Bad breath/ ugly teeth. Not completely straight is fine, it's natural; but if your teeth look like Austin Powers' it's not happening.
-Ugly or missing toes/toenails/fingers/fingernails: It just messes me up when I see a guy wearing sandals or flip-flops and their feet clearly look like they've been on a barefoot archeological dig. The one thing worse is missing any digits period. I just can't get sexy with that visual.
-Smegma, head cheese, fishdicks...smelly penises/crotch. I've had to turn away some choice potential because they can't keep that smell to a minimum.
-Gay-Trendiness: If you look like anyone from a TLA video, or if someone can tell you live in West Hollywood/East Village/Castro District/Philly/DC metro area before you open your mouth, I'm not interested.
-Coversation hijacking: If we have a conversation and everytime you ask me something, you cut me off to tell you how much more better/worse your experience was? That's a chop.
-Lying: No AOL inches, no in-between jobs, no "I have a car, it's just in the impound right now"...just don't lie. It'll make things alot easier.
-Versatile guys: No offense, but don't lure me in with false pretenses of macho top sex when you just want to get fucked. I don't like that. See Above.
-Romantic behaviour in a hookup setting: If it's just supposed to be a quickie, I don't wanna cuddle or lie next to you. When guys try that I get a weird feeling in the pit of my stomach and I'm ready to leave right then.
...I'm gonna stop there before I piss anyone else off.