danger zone

plural danger zones

1. A specifically hazardous place to be avoided, usually demarcated, such as an area with anti-personnel mines.

   She has danced into the danger zone / When the dancer becomes the dance

   1983, Michael Sembello, Dennis Matkosky, “Maniac”

   1 more example

   The athletic Walker, one of Tottenham's more effective attacking elements with his raids from right-back, made a timely intervention after Rose had been dispossessed and even Aaron Lennon was needed to provide an interception in the danger zone to foil another attempt by the Russians.

   2011 October 20, Jamie Lillywhite, “Tottenham 1 - 0 Rubin Kazan”, in BBC Sport

2. The range of temperatures within which bacteria are likely to grow in food.
3. figurativelyThe genitals.

   They say I better get a chaperone / Because I can't stop messing with the danger zone

   1984, Cyndi Lauper, “She Bop”, in She's So Unusual