2 definitions by Lone *

An erection sustained while riding a motorcycle.
"I had a rough ride into work this morning. I popped a wicked motoboner."
by Lone * July 11, 2008
The vaginal discharge left behind on the passenger (pillion) seat of a motorcycle following a particularly arousing ride.
Dude, you should have seen the pillion puddle that Betty made when we rode the twisties yesterday!
by Lone * February 13, 2009