When a denim connoisseur is seen to be wearing denim jeans (1), a denim jean-jacket (2), a denim t-shirt (3) and at least one other denim based article of clothing (4). The additional and fourth item could could be denim socks, a denim hat or other denim accessory but must be visible to the viewing public, generally (but not always) ruling out denim lingerie.
Quadenim propels a denim wearer to the upper echelons of the art. There is no known higher rank.
Quadenim > Triple Denim > Double Denim
"Whoa! Look at that dude! Not double, not even triple, but..."
"...Quadenim!"
"Hero."
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.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.