The last thing to be said before one leaves or exits for what may be the final time; famous last words.
IE: If you are radio DJ's leaving work on Friday not knowing if you will be back because one of your on air contests went awry in a Church, the last thing they say as their shift ends is, "Your mom's box."
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.