Generally, his teammates call him "Ding'er" and "Brother Ding". From the names, it can be seen that he is the eldest brother in the group. If he has a very good relationship, he will be called "A Cheng". These titles are all Normal title.
Anyone who has paid more or less attention to him will know that some fans call him "Little Fox", "Fox Dancer" and "Fox Fairy Brother". This is because he looks very good-looking, like a little fox. As cute as a fox.