The term "Grumpleupagus" is a combined term, taking inspiration from Sesame Street character, Snuffleupagus, and the word "grumpy". Grumpleupagus is a noun used to describe a rather cranky being. In modern mythology, some say the grumpleupaguses used their longtrunk to shoo away persons they find annoying.
OhJohn, you're such a grumpleupagus. What's the problem?
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.