The disease of becoming a ho. Many women go through this stage at some point in their lives. Most likely after they've been ravaged by a man and find out they love the penis, giving head, sex; or all of the above. After the full syndrome kicks in, it may subside, but the virus will never fully disappear, although the ho-ish tentions may subdue, they will never completely go away, much like any other virus.
You better watch out for your sister before she comes down with ho-itus.
I banged the shit out of that chick, and now she loves the cock. I guess I cause the ho-itus.