Not trying to be an ass here, but I think some of these are a bit extreme.
Quote:
"you panties look like it has blood stains from your last period! im kidding i love girls that pms...........i really dont"
How would that help you in any way? That seems like it would just be a straight turn off to any girl. I understand that how you say it and your body language will have an impact on her reaction too, but I still just don't see it.
A neg is a back-handed compliment. Where is the compliment in some of these? Like the one quoted above is not a neg at all... just something that would make her look at you weird, perhaps slap you, and then walk away. If a girl said something like that to you, how would you react?
"It looks like you have shit stains on your boxers/briefs from the Chinese buffet you pounded earlier. I'm kidding... I love guys that shit everywhere... really I don't."
^ That isn't going to help her cause is it now? When and if I neg, it usually comes off as a genuine compliment with a twist. A cliche one that some people use here: "Aww that's really cute! Your nose wrinkles when you laugh" or something like that. It's not insulting in any way nor is it gruesome.