A more thorough explanation:

Definition: Crimping is a historical offense where people were tricked and trapped to join the military against their will.

Example: During the 18th and 19th centuries, crimping was a common practice in ports like London and Liverpool. Unscrupulous men known as "crimps" would lure unsuspecting men with promises of work or alcohol, only to drug them and sell them to naval recruiters. These men were then forced to serve in the navy, often for years at a time.

Explanation: The example illustrates how crimping was used to deceive and trap people into military service. The crimps used false promises and coercion to force people into serving in the navy, which was a dangerous and difficult job. This practice was eventually outlawed, but it was a common problem for many years.