When people from San Franciscointerrupt you while you're having a neutral discussion to assert their misplaced sense of entitlement and reassure you that whatever you're talking about they definitely inherently know the answer, after all, they're from San Francisco.
Tom was talking to John, a San Franciscan, about the topic of homelessness until John interrupted Tom mid sentence and began sansplaining to Tom because he feels a false sense of superiority which he carries as badge of entitlement wherever he goes.
Karen shesplained, "Well, I just don't know what I'm in the mood for. We haven't had Chinease for a while. Where would you like to go, anywhere is fine with me, except for steak or burgers, maybe chicken bbq? What are you in the mood for? Shesplaining