Assholian describes behaviors, attitudes, or situations that are characterized by rudeness, arrogance, or a lack of empathy, often in a way that is self-serving or dismissive of others. It can refer to individuals or systems that prioritize their own interests at the expense of others, exhibiting a blatant disregard for social norms or the feelings of those around them.
For example, a workplace culture that encourages cutthroat competition and rewards backstabbing behavior could be described as "Assholian." It captures the essence of toxic behavior that undermines cooperation and respect in social interactions.