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
Get the Car Bonermug. 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 19, 2007
Get the piss bonermug. 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 24, 2006
Get the Boner Coastermug. by AcidFr33k April 23, 2010
Get the Stoner-Bonermug. by nouveaupauvre January 2, 2008
Get the boner blanketmug. by Kelly Lilly November 17, 2006
Get the boner loanermug. by Oscar Ernie January 7, 2008
Get the country bonermug.