An adjective used to describe someone who has said or done something that displeases you. Can only be used in the southern part of the U.S. It really has no meaning except for intimidation.
Person: "I don't believe in god."
Christian from Alabama: "You listen here you mucka chucka non-believer!"
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.