Closet multitasking is when you show up for remote meetings pretending to be in attendance but really working on something else.
Bob: Did you hear in the staff meeting that no one can take vacation in February?
Jane: No. Did Fred say that?
Bob: Absolutely. What were you closet multitasking?
The Boss: Jim, How are sales doing?
Me: crickets - no reply
The Boss: WTF, Jim? You closet multitasking?