The story of "riding a dog to break his crotch" is usually a fable or symbol used to convey some moral, lesson or value. This story may imply the following meanings:

Behavior and Consequences: Stories may emphasize that people's actions have consequences. Dog riding may be viewed as an inappropriate or unsafe behavior, and a ripped crotch represents a possible negative outcome.

Caution and Consequences: It may remind people to be cautious when doing things, taking into account potential risks and consequences. Imprudent behavior can lead to undesirable results.

Moral lesson: The story may be intended to convey a certain moral or code of conduct, such as respecting animals, following rules, or avoiding inappropriate behavior.