The mysterious phenomenon where folding chairs gradually disappear after letting friends or family "borrow" them. Particularly common in young people's first apartments, where the initial set of 4-6 chairs slowly dwindles to 2 or none through a series of "I'll bring it back next week" promises. Also occurs at larger scale in churches, community centers, and family events. The chairs inevitably end up scattered across multiple households, never to return to their original owner.
"Yo, remember when I had six folding chairs? After lending them out for various friend's parties and moves, I'm down to just one that's held together with duct tape. Folding chair shrinkage got me bad."