A “kite” is a note sent to someone else inside. In some cases, a kite can refer to official communications, such as a Sick Call Request, but we most often see it used in TDCJ to refer to informal communications between prisoners. In some contexts, a kite can connote revealing something secret, or snitching. Apparently in some prisons, a kite refers sending a letter to a non-extent address with a return address of another prisoner as a way of sending a letter to another prisoner (in many jails and prisons, this is illegal). In TDCJ, this is generally known as a “boomerang” instead of a kite. A kite is often thrown to another cell attached to a string, which allows retrieval of a bad throw and of a response. That is probably how the term kite originated.