Also if she has an ugly face.

How would you see a penis just from her turning around?

Anyway, I would say bad face, acne, Short hair, man legs, big nose, voice, and weight.

"I find the most erotic part of the woman is the boobies."

Actually no (see profile). Having boobies is a turn off for me.

A lack of good conversation is a big turn off.

None straight acting guys. i like them straight acting

and for the boobs thing. i find women with small boobs more beautiful

Remembering that i've seen her on a craigslist ad before

Turn off's for me are:
-long hair
-a big ego
-guys that shave everything

I also really hate it when guys use the term 'straight acting' when they talk about a gay man. Don't get me wrong: I'm not attracted to guys who scream like girls for example but the "straight acting' bit...
I hate to think that you would have to 'act' around me all day, I prefer you'd be yourself. Also there is nothing straight about kissing or having sex with another man, but that's probably me... But maybe some of the other guys can shed some light on that subject

If I were straight though the biggest turn off for me would definitely be breast implants!

screwed up teeth, broad shoulders, heavy amount of acne, unibrow, too much make-up, to name a few.

Short hair
Smoking
Stupidity

Finding out the third one can end badly

I find the third one can be used to your advantage...... in many ways .