warrior's first blood
When a dude pops a girl's cherry, and her blood is on his penis, he removes it from her vagina and proceeds to make streaks on her face much like native americans paint their faces before war. (bonus points for poking her in the eye in the process).
When Christina decided to let Arjun steal her virginity, he begged her to rub his penis all over her face to give her a warrior's first blood.