Combing my hair
Exclamation a young boy might make while locked in the bathroom masterbating. An excuse to cover up the fact that one is masterbating.
Mom (yelling): "Stevie! Why have you been in the bathroom for 35 minutes?"
Stevie: "MOM!!! Leave me alone, I'm combing my hair."
Stevie: "MOM!!! Leave me alone, I'm combing my hair."