I hold doors open for ladies and am therefore chivalrous. You, you "souped-up" Citroen Saxo driver, you wearer of faux Burberry, you drinker of crap cider, you denizen of a sink estate, you comon oaf, are chavalrous. Begone!
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.