When the vibrations of a car, train or plane journey cause you to get a hard on. also for further amusement - sometimes sexual, one can tightlypres the area around giving it a firm clear outline of the boner, this is then called a "Car Boner Hand Print" derived from carbon footprint.
"Dude, put that Car boner away, you're making me ill!" "Woh vibrations are getting to the lower quater, think i got a car boner coming on" "Brookes Mathews made a major car boner hand print the other day, soo clear but soo small" "Brighton + Lifton = a journey full of car boners"
by Forest Kin January 23, 2008
A guy wakes up with a piss boner when he doesn't totally unload before he goes to bed. This can be especially embarrassing when living with another man or when explaining the concept to a female when under the hysteria of the midnight mindfuck.
I laid in bed for at least an hour this morning and the piss boner I had never went down. I basically had to masturbate to get it to a size reasonable enough to get out of bed with.
by gergerry_da_phzzt September 08, 2007
This is the phenomenon that occurs when you see a ridicuously hot chick that makes you instantaneously pop wood, blow your load, pop wood, blow your load, pop wood, and so on. Similiar to the peaks and valleys one would experience on a roller coaster.
by A quickdraw/ripcord production February 23, 2006
by AcidFr33k April 23, 2010
Your mom's such a boner loaner
by Kelly Lilly November 17, 2006
by Oscar Ernie December 19, 2007
by nouveaupauvre December 07, 2007