en.wikipedia.org
Sex trafficking is human trafficking for the purpose of sexual exploitation. It has been called a form of modern slavery because of the way victims are forced into sexual acts non-consensually, in a form of sexual slavery. Perpetrators of the crime are called sex traffickers or pimps—people who manipulate victims to engage in various forms of commercial sex with paying customers. Sex traffickers use force, fraud, and coercion as they recruit, transport, and provide their victims as prostitutes. Sometimes victims are brought into a situation of dependency on their trafficker(s), financially or emotionally. Every aspect of sex trafficking is considered a crime, from acquisition to transportation and exploitation of victims. This includes any sexual exploitation of adults or minors, including child sex tourism (CST) and domestic minor sex trafficking (DMST).
I guess it is just fancy phrase for pimping. lol