William Glen Harold Herrington, was an American model and pornographic film actor. In the late 2000s, his appearances in various gay pornography movies led him to become a popular Internet meme on video-sharing websites such as Japan's Nico Nico Douga, where he was referred to by the sobriquet "Aniki" . Since then, at least 15,000 short mash-up parodies of his clips—known as "Gachimuchi Pants Wrestling" —have been produced by users.

Niconico , known before 2012 as Nico Nico Douga , is a Japanese video-sharing service based in Tokyo, Japan. "Niconico" or "nikoniko" is the Japanese ideophone for smiling. As of 2021, Niconico is the 34th most-visited website in Japan, according to Alexa Internet.