Choi san member of ATEEZ is the standard of kpop performance as it was said by professional dancers " the man who will upgrade the standard of k-pop performance."

n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.