A person who takes the fun out of absolutely everything by being extremely whiny, annoying, bitchy, moody, strict, uptight, etc. People who are like this are a real drag.
Guy 1:We were having a blast mattress surfing behind my bro's 4 wheeler until our neighbors came out and screamed at us.
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.