Commonly thought to be "Soy Un Perdedor," which is actually completely stupid. Actually translating to "I'm a loser," this phrase is from the song "Loser" by Beck.
Sur un perdedor, I'm a loserbaby, so why don't you kill me?
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.