Something a girl suffers when she is on the rag. Feels like one is being stabbed in the gut with a knife or giving birth. Typically make a girl lay in the fetal position or want to sit in the shower/bath for hours on end. Cramps can be felt during ovulation two weeks before the period actually starts. However, cramps are the worst on the first and second day of a girl cycle. Also used as an excuse to avoid sleeping with a man that has a small penis.

a god awful pain girls go through during "that time of the month"

What a girl experiences on her period. The cramps come from the uterus and it is sometimes like a burning feeling.