When you look through a laundry basket of clean clothes for a specific article, like boxers. Instead of just folding the clothes and putting them away, you loot the basket daily until there are none left, leaving to you to freeball it at work.
i.e. all shirts & skivvies are past the 3-day inside-out rule; and all your pants & socks are funk-starched to the point of standing on their own. You are past the laundry event horizon.