TL and BT were terms that often appeared in anime. The specific explanation was as follows: 1TL (Boys' Love) refers to the love between men. It is often seen as vulgar and vulgar, but in some cases, TL is also a popular culture. 2bt (Dark perversion) refers to abnormal, repulsive, or shocking behavior or circumstances. In anime and manga, the word 'bt' was often used to describe some very strange and uncomfortable plots or characters. Other than that, there were similar words such as fans, Otaku, and so on. The meaning and usage of these words are also different from that of TL and BT, but they all represent a specific type of culture and interest.