So, yesterday, I got this text message from my own mother:

Now, after laughing for a good 5 minutes and then racking my brain for half a day, I still don't know how to help my mom insult this guy.

So, what's a good word or pithy phrase which describes:

An adult whose confidence exceeds his talent, but he doesn't seem to recognize that

?

And before you question the wisdom of helping her find such a word ... hey, the lady brought me into this world. I owe her.