A person who claims to be a vegetarian because they don't eat meat, yet maintains an unhealthy diet of foods such as pizza.
From Regina Spektor's "Your Honor", off the album "Soviet Kitsch": "Gargle with peroxide, A steak for your eye, But I'm a pizzatarian so it's a frozen pizza pie".
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.