A duplex lived in by a group of young guys who never clean up, never throw away garbage, do not do any dishes and whose sink is always clogged. A Dirty Duplex is completely disgusting, smells rancidly at all times and guests can never be brought over to visit.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)