Resting Fuckboy Face
When someone automatically assumes you're a fuckboy based on your resting facial expression, but you're actually a decent guy means you suffer from resting fuckboy face.
Girl 1: Johnny looks like such a fuckboy, there's no way I'm going to prom with him.
Girl 2: Don't worry, Sarah. He's just got resting fuckboy face.
Girl 2: Don't worry, Sarah. He's just got resting fuckboy face.