c'ard-on

The type of hard-on guys get in a car, usually while driving over a continuously bumpy road.

Guys in a car going on a camping trip:
Hey - check-out Jake - he's asleep, but has a c'ard-on.
That's funny!

Guy thinking to himself:
Damn bumpy road - giving me a c'ard-on.

by RNPS June 19, 2007