The topic of "Turk Liseli Gizli Cekim Indir Esra Ile Mustafa" seems to blend elements of lifestyle and entertainment. It may involve discussions on fashion, music, relationships, and other aspects of high school life in Turkey. The "gizli cekim" part of the phrase translates to "secret filming" or "hidden camera," which could imply that the content involves behind-the-scenes or candid footage of Esra and Mustafa's lives.