Castelarini Masturbini circulates online as part of the Italian brainrot wave, where invented characters with rhyming, Italian sounding names are introduced in an exaggerated voiceover style. Clips in this format spread mainly through short form video, remixes and soundboards, with creators reusing the same audio over new images to build a running joke. Its appeal does not depend on a plot or a known source scene, but on recognition, as audiences who have heard the delivery before understand the comedic setup immediately and expect a deliberately ridiculous reveal.