Sand hanitizer is a goofy way of saying hand sanitizer that rolls off the tongue better.
"Pass me the sand hanitizer." "Do you mean the hand sanitizer?" "Oh yeah! It's just so easy to accidentally say sand hanitizer..." "Now you got me saying sand hanitizer!"
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.