The act of fencing something off with plexiglass. Specifically to prevent the spread of disease. Named after Mike Pence, so likely to have COVID after spending time with trump that they had to erect a plexiglass shield during the debates to prevent him from getting other people sick. Pence is the head of trump's COVID task force.
"Oh, shit, she got the COVID? Dayum, we better start pencing her off from everybody else!"
"If they're not pencing that salad bar off then we better not eat at it!"