Sometimes words mean little to nothing.
Sticky notes or Post-it notes... Small size note pads with a tiny bit of glue that lets the note re-stick over and over to other paper items or even, a computer screen.
At the moment - an absentee note.
He must of missed the memo
Ir apparently is still missing!
Not something you want to hear after you've been sewn up- "Where's my?.." We all know where it is!
Hello? Add something.