The passive party in little finger gay men. It is often mentioned in novels and cartoons. It is believed that small attacks are more active, on the contrary, small attacks are more passive. Among gay men, "1" is vividly used to describe the active party, and "0" is used to describe the passive party. With the continuous spread of online novels, words such as "minor episode" and "minor pain" have appeared to describe the relationship between two homosexuals. SUB also refers to the receiver