This is a pun that is made in the industry of music. As played with most instruments, there is a musical clef called, "Treble". People in musicwill use this as a pun word, to replace other worlds such as "trouble".
Band Director: "We will now play in C# Major with the treble clef!"
Bandstudent: "Oh no! That sounds quite treblesome!"
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.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.