Top definition
The bunching in the area of your crotch, making it look like you have a boner.
Damn, look at his jean weiner.

or

I don't want to move my hands because I am embarassed by my jean weiner. IT'S JUST THE WAY THE PANTS FIT WHEN I AM SITTING!

or

I wish my real weiner was as big as my jean weiner
by Mandoooo March 05, 2008
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