buscar cualquier palabra, como dirty sanchez:
 
1.
The bunching up of a zipper so it appears as if you have an erection protruding from your jacket.
Jim had a jacket boner and we laughed at how small it was.
Por Trevor Cobbs 24 de marzo de 2008
 
2.
when you are wearing a zip-up jacket of any brand

and when zipped up it looks as if the zip line has multiple boners because of the numerous humps.
could also look like vaginas in extreme cases
Ugh stupid jacket boners
Por TheJacketKing 27 de enero de 2011