Question

Holden calls other people phony. In what way is he one?​

Answer 1

Holden sees people who are phony as anyone who isn't 100% genuine or honest. However he Lies to people consistently in which he would also be considered just as Phony as anyone else.

Answer 2

To be phony is to be fake; Holden lies to people regularly, so he could be called a phony.