Some of the big turn-offs for me are: Tattoos, smokers, tobacco chewers, alcohol abusers, men with earrings, gaudy jewelry and clothes, haughty attitude.
I used to think this guy where I work was so hot, and with such a nice personality. That was my opinion until one day he showed up at work with a tank top which revealed his upper arm tattoos, and he was wearing an earring stud, and he was chewing tobacco and spitting it out on top of that(AAAAARRRRRRRGGGGGGGGGG!!!!!!!!!!!!!!!!). I never thought the same of him. It's only "hi!" and "Bye" between us from that day on. I avoid him as much as possible. GROSSED ME OUT!!!!!!!!!
All those bad habits/choices take away everything in a man. My personal opinion, of course.
DY