The name comes from Cheng Can played by TV artist Liao Weixiong in the wireless TV series "Man in the Net", in which he plays a new immigrant from the mainland who is ignorant, rustic and eager for success. In addition, in the play, a can caused a sensation because it had to eat 30 hamburgers in one breath, and Liao Weixiong became popular. "Can" has always been the nickname of Liao Weixiong.