A person who can talk the talk but can't walk the walk. Someone who dresses with style, looks like they got it together, and can look like they have expensive taste but when it comes to depth they can't deliver. No real skills, no real talent, even though they got the "look".
She messed up my haireven though hers looks flawless. What a showhorse.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.