It means absolutely nothing...but she wants you to think it means a wild time.

I am a newbie and I notice a lot of webpages and eros ads say that the provider is "open minded."  Is this a term of art that has some specific meaning?  I checked the newbie manual and the definitions thread but did not see it listed.  Thanks.

Maybe it means she doesn't discriminate based on age, ethnicity, or looks? Hygiene is another matter, of course.

For me "open minded" means that I'm willing to try new things. It also means a gentleman can ask if I provide something "out of the ordinary" along the lines of fetishes and kinks

have done before.  Every provider has her boundaries and to ask her to go beyond those boundaries or force her to do something against her will is not condoned.