2. Most commonly used before sex and is brought up by the male of the couple. Pernani does not only have to refer to a female vagina, it can also sometimes be known as certain sex acts. (For example, pernani is a one word term for the five word phrase, "Spread 'em, and let 'em."
3. The "spread 'em" part as in opened up legs, and the "and let 'em" part as in the female giving permission to the male to take part in a sex act.