When just under half of your battery is left on your IPOD and you aren't sure when it's going to run out
by MJE23 June 12, 2007

Mike didn't get any action last night from Erin, she doesn't allow any red zone play while Aunt Flo is in town.
by dungpow September 20, 2009

by Picklez July 21, 2006

by Theodore Broosevelt March 30, 2010

The Red Zone Section on a packet of contraceptive pills indicating when menstruation is due to start, this helps couples prepare for a possible drought or messy play.
Guy: What's the problem?
Girl: I'm nearly at the Red Zone on my pills!
Guy: Oh, that time again :s
Girl: Yeah, Red Zone
Girl: I'm nearly at the Red Zone on my pills!
Guy: Oh, that time again :s
Girl: Yeah, Red Zone
by Drew's Chew October 25, 2011

by floridagoon October 10, 2008

by FJS January 02, 2008
