The least desireable form of a blumpkin (as if any are particularly desireable) for the giver --- That which takes place after an especially large amount of Taco Bell has been consumed by the blumpkin-receiver
During a particularly rancid TacoBellumpkin, she received a splash of partially-digested Chalupa right in the face.
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.