Bare bottom swollen anus

光腚肿菊 (guāng dìan zhǒng jú): bare-bottomed swollen anus

In Chinese this sounds nearly the same as 广电总局 (guǎng diàn zǒng jí), the Radio Film and Television Administration. The administration is sometimes referred to simply as 光腚 or bare-bottom, as in this song that parodies the administration.