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The older woman in some pornographic movies who orchestrates lesbian sex between two or more much younger women. Generally one or more of these younger women insist that they are straight. It is the master lesbianator's job to at first scold, then cajole, then direct the younger women in their lovemaking techniques. These women learn very quickly under her more mature tutelage. It is customary for the master lesbianator to sensitively praise the often formerly straight women after completion.
"Hey what's this old broad doing in this lesbian scene?"

"She's the master lesbianator. The other girls wouldn't know what to do without her."

"You're kidding me right?"

"I wish. The director is trying to be artsy."
by Cirdellin January 06, 2010
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