A random erection that occurs while drving long distances. Often leads to discomfort and the need to adjust.
I had 73 road boners on the trip to Ohio.
by Tim - E June 09, 2006
when you get a boner driving down the highway due to road vibrations. usually starts when thinking about sex coupled with big bump in road. can be quite annoying
i was driving my big rig and thinking about my one-night stand last night. now i got a hella roadboner
by matt August 22, 2004