"Bad juju"

I haven't heard this for a while, but a friend on the phone said she had moved recently because "There was a lot of bad juju with the landlords." I knew what she meant, but when I looked it up, juju is "a fetish or charm, or the powers attributed to that charm." (Etymology, West African, Hausa, djudju, fetish, evil spirit.) She meant, confusion, bad energy. Most of the definitions mentioned the fetish and the magic, but the best one I could come up with was, "any process in which a mystery is exploited to confuse people." Sometimes, you just meet someone you always butt heads with, for no apparent reason, but it's impossible to set it right. It's confusing; it's bad energy; it's bad juju.