demilitarized zone 

In alcoholic terms, a demilitarized zone (DMZ) is the time period, usually the frontier or boundary between the state of drunkeness and hangoverness, where the mind feels fresh and unaffected by acohol. This period usually occurs at a few hours after dawn, and lasts for only a short period of time. During the demilitarized zone, one can get out of bed and walk around without feeling the affects of alcohol, like vomiting and extreme headaches.

Yo man, I woke up this morning at 7am, and I felt awesome. I must have just caught the demilitarized zone. 30 minutes later I couldn't stand up without having to vomit.

demilitarized zone by vblom1 January 8, 2012

de-militarized zone 

(n.) (American spelling) A part of a country which is not occupied (and is not intended to be occupied) by home troops.

The rhineland was origianally to be a de-militarized zone.

de-militarized zone by Kung-Fu Jesus May 20, 2004