Total Meltdown is a term used to describe a situation in which a person or organization experiences a complete and utter failure. The term can also be used to describe a situation in which a person or organization experiences a catastrophic breakdown of their systems, processes, or plans. The crossword solution for the term Total Meltdown is 'DEBACLE, ' which is defined as a complete and utter failure or collapse. It is often used to describe a situation in which a person or organization experiences a total breakdown of their systems, processes, or plans.