Similar to Penis Envy, this is common around photographers who have bigger lense attachments then another photographer.
Boy1: I was taking pictures around london with my SLR when i walked past the paparazzi. Their Lenses were MASSIVE!
Boy2: Dude you most of got Lense Envy right there!
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.