A code term used to describe the size of a man's penis without having to give specific details. Being "in the happy zone" means you are at least average or a little above. (5.5-8 inches) See also the Frankenstein Zone and the Outrageous Zone.
by GregiPop March 31, 2011
Wow isn't Grantie a LEGEND for being the Promoter for Hyperbolic (THE HAPPY POPLE ZONE) all the ravers love the awesome friendly atmosphere over there and everyone there is safe as!!
by DanDanTheRavinMan=) February 26, 2010