mmm I dunno. I'm not prudish at all, I laugh at dirty jokes, and dont mind a bit of smutty banter and risque comments, but if I think for a moment that the bloke in question means it rather than just saying it for a laugh then I'm afraid it makes my skin crawl.
YANBU, I feel exactly the same way, have done since I was about 13 (when the innuendo first started) so nothing to do with age!
It really grates - the implication that you WILL be happy with their comments, the suggestion that you might LIKE being talked to like a piece of meat, and the man who simply assumes it is OK to talk to a woman like that. I'm ok with dirty jokes/banter, but it isn't banter when one person is saying vile things and making the other uncomfortable, regardless of gender.
At best it's annoying and at worst it is threatening, I don't have time for it. As for women flashing the flesh - a woman shouldn't have to cover herself from head to toe in order to avoid male attention. A short skirt doesn't = 'grope me now'.