mess someone’s face up
mess (one's) face up
To severely injury or mutilate one's face. I heard Tom really messed his face up in that car accident. Do you want me to mess your face up or something, pal? I said get away from us!
mess someone’s face up
tv. to beat someone around the face. (Underworld.) I had to mess his face up a little, boss, but he’s been real cooperative since then.