Menstruation (men-STRAY-shuhn) is a woman's monthly bleeding. When you menstruate, your body sheds the lining of the uterus (womb). Menstrual blood flows from the uterus through the small opening in the cervix and passes out of the body through the vagina. Most menstrual periods last from 3 to 5 days.
Kendrick Lamar Duckworth (born June 17, 1987), known professionally as Kendrick Lamar, is an American rapper and songwriter.
The 27-year-old rapper has a broad smile on his face. He seems almost as excited as the students, who just might be having their best day of school ... ever. Lamar is on top of the rap game at the moment. His latest album, To Pimp a Butterfly, came out earlier this year and debuted at No. 1 on Billboard's albums chart.