the term "mamasan" is actually Japanese, but is used all over N Asia and SE Asia. It also doesn't necessarily always refer to a woman who manages and takes care of girls in a brothel. She could be in a variety of businesses that have nothing to do with sex. All of them I have ever met here in our AMP's were usually very sweet to me, and I have often become good friends with them and they would feed me! Another thing, they don't always have to be an older lady either, tho if they are younger, they probably don't want to be called "mamasan" lolTreat the Mamasan very nice, and she will do the same for you, and spread the word to the girls