A fork of Rural Dictionary
When a person wearing jeans sits down and the zipper/button area sticks up, making it look like the wearer has an erection. Known as the grown zone as that’s extra room for the penis to grow.
Kieran: Andy, look, Simon has a massive erection. Andy: no that’s just his grown zone. Look, Emma has one too and I know for a fact she doesn’t have a penis. Kieran: what? Andy: ... what?