A sex position calling for the girl to sit on the guy as they ride over speed bumps. WARNING: DRIVE SLOWLY, IT MAY BECOME PAINFUL IF YOU DRIVE TO FAST.
Tommy: Hey are you going speed bumping tonight with your girlfriend?
Alec: Yeah...I'm still sore from last night though.
speed bumps: Marbles and/or other objects being place inside the skin of the penis to increase the intensity of female's orgasm.. believed to have come from Fiji..
speed bumps - cut a small opening in your shaft just below you penis head on the bottom of your penis.. insert marbles or other objects inside then sew it shut.