Who is The Women from Notes of a Dirty Old Man and what is their importance?

In almost every story of Bukowski's, there are women who act as playthings for Bukowski or his characters. At times named, but usually anonymous, these women are often beautiful in a fake sort of way. With dyed hair, short skirts, high heels, and vulgar language, these women are the nightly companions of Bukowski, or at least of his fantasies. It is unclear in some stories if the women are real, or simply figments of Bukowski's deviant imagination, but in all cases, the women are loose, often intoxicated, and always ready to please Bukowski. His treatment of these women, which often borders on abusive, shows his lack of respect for this type of woman, and generally implies a lack of respect for all women.