1. A word that would be close to the literal meaning would be "Dumb fuck".
2. Worst than saying dumbass/dumbfuck.
"You're not suppos'd to do it that way.. DHINGUR"
"HEY, WATCHYA CALL ME! Don't ever call me that again, you ASSWIPE"
(yea, people take that much offense to it.)
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.