Speed Humping 

The word created for driving over speed humps way too fast in hopes of getting air. While there are very few cases reported of tires actually leaving the ground, it is still a thrill ride if you do it right.

Dude, Lets cut through Bellevue and do some speed humping!

Speed Humping by WatsonN April 27, 2013

speedbumping 

A variation of the bump and grind which results in accidental or "accidental" penetration...aka sex on a dance floor.

Joe: "So dude, how was the party last night?"

Dan: "Man, it was awesome, me and Kelly were grinding all night and then....we started speedbumping."

Joe: "No way man! Nice!"

speedbumping by Yeskimo August 19, 2009

Speedbumping 

When one quickly slides the head of his erect penis back-and-forth through his partner’s anal sphincter. Reasonable facsimiles of this would be when the partner’s mouth or vagina is used.

When Harvey finished speedbumping his girl, there was some tomato skin stuck to his dick.

Speedbumping by Goofnut September 4, 2022