Definitions by i[dont]loveyou.

jean penis

when you sit down and are wearing jeans your zipper thing will stick out. this is called a jean penis. or jean peen.

person 1: don't wear those, they give you a major jean penis when you sit.

jean penis by i[dont]loveyou. January 18, 2008

jean peen 

when jeans are worn, often the zipper part sticks out. this is called a jean peen or jean penis

person 1: so do you like my new jeans?
person 2: they're pretty, but when you sit down you get a serious jean peen.

jean peen by i[dont]loveyou. January 18, 2008