Growth hacking is a marketing strategy that focuses on rapid experimentation and iteration to achieve rapid growth for a product or business. It’s like finding clever shortcuts and creative tactics to fuel fast and sustainable growth. Think of it as a smart entrepreneur's way of getting the best bang for their buck. Growth hacking involves leveraging data, analytics, and user feedback to identify opportunities and optimize marketing channels and strategies. It's all about continuous testing, learning, and refining to drive user acquisition, retention, and revenue.