An un-used area of the brain unreachable by the conscious mind. Stephen King wrote the novel "Dead Zone" in which the lead character John Smith falls into a coma following a car accident. When awakeningen five years later, he finds the accident has activated his dead zone and he is now able to see glimpses of the future. The "dead zone" (with or without supernatural function) is probably King's fictional invention.
The book has been filmed and made into a tv series.

When you express your feelings for another person and they not only reject those feelings, they completely ignore you and any contact you make.

The area in a quesadilla between the edge of the tortilla and the location of the cheese on the inside. Large dead zones are found when someone who is inexperienced prepares a quesadilla and only puts cheese in the middle of the tortilla, incorrectly assuming that the cheese will disperse while melting.

Used by players of the MMORPG World of Warcraft.
It refers to the space where a hunter cannot reach his/her enemy because it is too far away for melee weapons and too close for ranged weapons.

in surfing: the area between two swells where the waves arent breaking.

A Walking Dead Zone is an area for people with mobile phones who are currently experiencing the inconvenience of not being able to transmit to a nearby mobile site, base station, or any other similar Wi-Fi points of access. In these areas, the mobile phone is said to be in a state of outage. Walking Dead Zones is usually where Wi-Fi service is not available because the signal between the handset and mobile site antennas is blocked or severely reduced, usually by hilly terrain, spooky graveyards, dense foliage, physical distance, or interference from the Talking Dead. This will cause most mobile phone users who have no means of transportation to keep “walking “ until they are finally within range of a verifiable signal. Some of these Talking Dead who are traversing the Walking Dead Zones, have been known to utter out incoherent ramblings, such as, “Out of range!” “Out of range!”

Within Two Weeks Before and Two After the Day of Your Birth.

The time between the 4:15 game and the 8:20 game in which there is no football on. The worst time of the day indeed.

A highly-rated T.V. show in which a mannamed Johny was hit by a truck on the free-way, and was put into a coma for nearly over 2 years or so. The 'dead zone' refers to the part of the brain where doctors say, "No one can tap into" when some guy who was hit by a truck can? The dead zone of the brain can let you see where the future leads to, in whatever object or person you touch.