Domain name kiting is the process of registering a domain name to test its monetization possibilities and then, if it doesn't generate sufficient advertising revenue, canceling it within the five-day grace period for a full refund.
Typically, this occurs with recently expired domain names that might still receive traffic from search engines and other visitors. If the domain name shows the potential to earn more than the cost of registration, the registrant keeps it. If it does not, the registrant cancels the domain name for a full refund.