Urban Dictionary Contribution: Human Cancer

The name that describes an entity within a family, workplace, clique, or any other type of organization or aggregate that creates disruptions of various orders through a variety of means that results in upsetting the entire balance of psychological and/or functional help within that organization or aggregate through a variety of dysfunctional behavior including but not limited to manipulation, deviancy, dishonesty, incompetence, hysteria, and or neurotic-ism. The entity could be an individual person or a small group but the results usually lead to the damaging of careers, relationships, and/or organizational culture.
That manager caused the destruction of way too many careers before he/she was isolated as a human cancer and finally weeded out of the organization – however, the damage was already done.

Dave organized a cult following to rebel against the current plan for the homeowner’s association. There obstructive behavior has perpetuated a human cancer that has devastated the community to the point people have started putting their homes on the market and are leaving.

Mary’s involvement with several co-workers led to many divorces, demotions, transfers, resignations, and firings. It’s amazing how much metastatic damage can be cause by one single piece of human cancer.
Read it on UD: https://www.urbandictionary.com/define.php?term=human+cancer&defid=7087604