The rule of 3 states how men overstate and women understate their number of sexual partners.

When asking someone about the number of sexual partners they've had, multiply a woman's answer by 3, because a woman wouldn't want to seem like a slut. When a man answers, divide the number he gives by 3, because he wants to seem like a player.

the whale tail is the shape formed when a g-string rides up high over a womans trousers

n. The fact that a girl can be persuaded to do pretty much anything when asked three times repetitively. This technique can be enhanced by a singular or collective "C'mon" by the asker and/or those surrounding.

In Heroclix (miniature game with Superheroes) no stat can be altered (increased - decreased) more than 3.