clos·et nar·cis·sist /ˈkläzit ˈnärsəsəst/ (noun)
1. Someone who is a narcissist, but denies it.
2. Someone who is a narcissist and knows it, but does not admit it.
3. Someone who is a narcissist, knows it, and admits it, but does not like being one.
John: Hey Henry! How are you doing?
Henry: I'm doing fine, John. Do you like my new clothes? Or how about my hairstyle? They're all new and I'm loving it all! What do you think?
John: They're fine, I guess... So, wha—
Henry: Oh, I've also met this girl at the bar and she's taken a shine to me. I think she may be the one, as well! She's nice and sweet and she thinks I'm handsome, too! I already knew that, but it still feels nice when someone tells me that.
John: You're being pretty narcissistic, Henry.
Henry: What? No, I'm not.
(Henry is a closet narcissist).