Denim dick

1. When a woman refuses her anatomy but will merely accept friction between denim, often causing a jean boner.

Some who experience this sensation report "blue balls" and/or 1/8th of orgasm.

2. When you don't get to go all the way with the girl you're hooking up with

Me: "man, how far'd you get with that chick last night"

Sam: "Denim dick man"