When a bunch of inconsiderate people, (usually next door neighbors) let their house party last into the middle of the night and either have the boom box way too loud, rev up their motorcycles or just be obnoxious drunk loudmouths, in general.
I hope that Losers Jamboree next door will be over soon, so I can get some kind of sleep before I have to get up for work tomorrow!
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.