“Leaf a Like” is a catchphrase used by the fans of the popular vlogger LeafyIsHere to spam the comment sections of popular video pages on YouTube. Initially coined as part of a photoshopped parody series depicting the video game commentator as a reptile, the in-joke has also spawned a number of other related terms used in the comments section of YouTube, including the Reptilian Army, Reptilian Brotherhood and most notably “Hisss…”, an onomatopoiea of the high-pitched sound commonly associated with reptilian creatures.