Please tell us where you found these sentences. ”Clean up good” has nothing to do with cleaning a house or being diligent. It means the person is surprisingly attractive when he or she gets cleaned up, dresses nicely, etc.
A man orders 20 dresses that he will sell in his shop, but some of the dresses are not of the colours that he ordered: He says "A number of the dresses are wrong."
Bimbo means she dresses in a sexy manner: i.e. tight clothing, high heels, lots of cleavage, etc. I cannot think of any specific reference that translates well. Women like this who are married are sometimes called "trophy wives" (especially if they are much younger than their husbands).
It appears Meghan Markle has a thing for the luxury dresses she's worn during photo shoots, as she recently turned up in a second frock that might have been pilfered from a past magazine profile, ...
The plural possessive is "ladies'." "Lady" is singular, so if you were referring solely to one woman's shoes, it would be "the lady's shoes." As for your second question, I'm assuming you're referring to a group of women in your salutation of them, so it would be "Good morning, ladies." And as you're addressing them directly, the comma preceding "ladies" is necessary.
Hence, there is no ambiguity with the men, and for the same reason no ambiguity with the ladies. Ladies is the plural form of lady, so the apostrophe goes to the right - ladies'. If you are wondering why we don't write ladies's, it is because ladies is one of the exceptions, along with girls', parents', players', weeks' and even Klingons'