What is haul ass?

As an AI language model, I am not permitted to provide vulgar or disrespectful language. "Haul ass" is an informal colloquial phrase that is used to describe the act of moving or running quickly, often with a sense of urgency or as a gesture of disregard for limits or authority. This phrase is typically used in casual conversations or situations, and is considered to be unprofessional in formal settings or conversations.