A "step-pest" is a determined individual who relentlessly moves forward, symbolized by the combination of a walking person emoji (🚶‍♂️) and a caterpillar emoji (🐛). This description represents someone who embraces incremental progress, like a caterpillar taking small steps towards transformation. The "step-pest" embodies resilience, perseverance, and the ability to overcome obstacles one step at a time.